"Ambiguous Name Detected" - Switchboard Won't Open

Please help!

I've done a search of the forums, the results of which have more-or-less caused me to understand (roughly) what the problem might be and how to locate the code which is causing it. Sadly, I am a bit of a Visual Basic virgin, and I am reluctant to wade right in because if I screw up this database I'll have decimated my company's advertising and marketing strategy (mailouts!).

I was trying to make a command button on a switchboard (which I have done before, but not recently) -- and was taking a bit of a trial-and-error approach. I wanted the button to result in the previewing of a set of mailing labels (which the user would susbsequently print after reviewing). One of my first attempts resulted in the button automatically printing, so I "cut" it, and several close-but-no-cigar attempts follwed, all of which I used the "cut" command to dispose of. The last attempt I made resulted in the following message:
"The expression On Open you entered as the event property setting produced the following error: Ambiguous name detected: Bulletin_Board_labels_Click.
-The expression may not result in the name of a macro, the name of a user-defined function, or [Event Procedure].
-There may have been an error evaluating the function, event, or macro."

I "cut" the button I had just created and thought that might fix it. It didn't. I still got the above message whenever I tried to open either this switchboard or the main switchboard. I tried closing down Access and restarting it. Same message, same problem.

Below is the code from the switchboard in question -- the last few entries are the relevant ones: anything to do with "bulletin board" is stuff I was working on. As far as I can tell there are currently no duplicate queries, reports, macros, etc, named "Bulletin Board Labels" (theres is one query named "Bulletin Board Query", and one report named "Bulletin Board Mailout labels", and that's it.)

The code for the switchboard follows...

Please help me resolve this problem?

:confused:
Jennifer
_________________________________________

Option Compare Database
Option Explicit

Private Sub Command0_Click()
On Error GoTo Err_Command0_Click

Dim stDocName As String

stDocName = "All Art Galleries"
DoCmd.OpenReport stDocName, acPreview

Exit_Command0_Click:
Exit Sub

Err_Command0_Click:
MsgBox Err.Description
Resume Exit_Command0_Click

End Sub

Private Sub Command11_Click()

End Sub

Private Sub OLEUnbound22_Click()
Dim strInput As String
strInput = "help.html"
Application.FollowHyperlink strInput, , True
End Sub

Private Sub University_Bigwigs_Click()
On Error GoTo Err_University_Bigwigs_Click

Dim stDocName As String

stDocName = "University Bigwigs Query (VP's, Deans, etc)"
DoCmd.OpenReport stDocName, acPreview

Exit_University_Bigwigs_Click:
Exit Sub

Err_University_Bigwigs_Click:
MsgBox Err.Description
Resume Exit_University_Bigwigs_Click

End Sub
Private Sub Command13_Click()
On Error GoTo Err_Command13_Click

Dim stDocName As String

stDocName = "Invitation Destination Report"
DoCmd.OpenReport stDocName, acPreview

Exit_Command13_Click:
Exit Sub

Err_Command13_Click:
MsgBox Err.Description
Resume Exit_Command13_Click

End Sub
Private Sub Main_Click()
On Error GoTo Err_Main_Click


DoCmd.Close

Exit_Main_Click:
Exit Sub

Err_Main_Click:
MsgBox Err.Description
Resume Exit_Main_Click

End Sub
Private Sub Help__Click()
On Error GoTo Err_Help__Click

Dim stAppName As String

stAppName = "C:AEAC Mailing list Databasehelp.html"
Call Shell(stAppName, 1)

Exit_Help__Click:
Exit Sub

Err_Help__Click:
MsgBox Err.Description
Resume Exit_Help__Click

End Sub
Private Sub Ref_List_Click()
On Error GoTo Err_Ref_List_Click

Dim stDocName As String

stDocName = "Category/Destination/Receive"
DoCmd.OpenReport stDocName, acPreview

Exit_Ref_List_Click:
Exit Sub

Err_Ref_List_Click:
MsgBox Err.Description
Resume Exit_Ref_List_Click

End Sub
Private Sub Campus_Coverage_Click()
On Error GoTo Err_Campus_Coverage_Click

Dim stDocName As String

stDocName = "Campus Coverage Report"
DoCmd.OpenReport stDocName, acPreview

Exit_Campus_Coverage_Click:
Exit Sub

Err_Campus_Coverage_Click:
MsgBox Err.Description
Resume Exit_Campus_Coverage_Click

End Sub
Private Sub Flyer_Report_Click()
On Error GoTo Err_Flyer_Report_Click

Dim stDocName As String

stDocName = "Flyer Destination Report"
DoCmd.OpenReport stDocName, acPreview

Exit_Flyer_Report_Click:
Exit Sub

Err_Flyer_Report_Click:
MsgBox Err.Description
Resume Exit_Flyer_Report_Click

End Sub
Private Sub Poster_Destination_List_Click()
On Error GoTo Err_Poster_Destination_List_Click

Dim stDocName As String

stDocName = "Poster Destination Report"
DoCmd.OpenReport stDocName, acPreview

Exit_Poster_Destination_List_Click:
Exit Sub

Err_Poster_Destination_List_Click:
MsgBox Err.Description
Resume Exit_Poster_Destination_List_Click

End Sub
Private Sub Currents_Destination_List_Click()
On Error GoTo Err_Currents_Destination_List_Click

Dim stDocName As String

stDocName = "Currents Destination Report"
DoCmd.OpenReport stDocName, acPreview

Exit_Currents_Destination_List_Click:
Exit Sub

Err_Currents_Destination_List_Click:
MsgBox Err.Description
Resume Exit_Currents_Destination_List_Click

End Sub
Private Sub Catalogue_Destination_Click()
On Error GoTo Err_Catalogue_Destination_Click

Dim stDocName As String

stDocName = "Catalogue Destination Report"
DoCmd.OpenReport stDocName, acPreview

Exit_Catalogue_Destination_Click:
Exit Sub

Err_Catalogue_Destination_Click:
MsgBox Err.Description
Resume Exit_Catalogue_Destination_Click

End Sub
Private Sub FlyerMultCopiesButton_Click()
On Error GoTo Err_FlyerMultCopiesButton_Click

Dim stDocName As String

stDocName = "Flyer Multiple Copies Report"
DoCmd.OpenReport stDocName, acPreview

Exit_FlyerMultCopiesButton_Click:
Exit Sub

Err_FlyerMultCopiesButton_Click:
MsgBox Err.Description
Resume Exit_FlyerMultCopiesButton_Click

End Sub
Private Sub InvitatMultCopButton_Click()
On Error GoTo Err_InvitatMultCopButton_Click

Dim stDocName As String

stDocName = "Invitation Multiple Copies Report"
DoCmd.OpenReport stDocName, acPreview

Exit_InvitatMultCopButton_Click:
Exit Sub

Err_InvitatMultCopButton_Click:
MsgBox Err.Description
Resume Exit_InvitatMultCopButton_Click

End Sub
Private Sub CampFlyMultCopButton_Click()
On Error GoTo Err_CampFlyMultCopButton_Click

Dim stDocName As String

stDocName = "Campus Flyer Multiple Copies Query"
DoCmd.OpenReport stDocName, acPreview

Exit_CampFlyMultCopButton_Click:
Exit Sub

Err_CampFlyMultCopButton_Click:
MsgBox Err.Description
Resume Exit_CampFlyMultCopButton_Click

End Sub
Private Sub PostMultCopButton_Click()
On Error GoTo Err_PostMultCopButton_Click

Dim stDocName As String

stDocName = "Poster Multiple Copies Report"
DoCmd.OpenReport stDocName, acPreview

Exit_PostMultCopButton_Click:
Exit Sub

Err_PostMultCopButton_Click:
MsgBox Err.Description
Resume Exit_PostMultCopButton_Click

End Sub
Private Sub Bulletin_Board_labels_Click()
On Error GoTo Err_Bulletin_Board_labels_Click

Dim stDocName As String

stDocName = "Bulletin Board Mailout Labels"
DoCmd.OpenReport stDocName, acNormal

Exit_Bulletin_Board_labels_Click:
Exit Sub

Err_Bulletin_Board_labels_Click:
MsgBox Err.Description
Resume Exit_Bulletin_Board_labels_Click

End Sub
Private Sub Bulletin_Board_labels_Click()
On Error GoTo Err_Bulletin_Board_labels_Click

Dim stDocName As String

stDocName = "Bulletin Board Mailout Labels"
DoCmd.OpenReport stDocName, acPreview

Exit_Bulletin_Board_labels_Click:
Exit Sub

Err_Bulletin_Board_labels_Click:
MsgBox Err.Description
Resume Exit_Bulletin_Board_labels_Click

End Sub
Private Sub Command57_Click()
On Error GoTo Err_Command57_Click


Screen.PreviousControl.SetFocus
DoCmd.FindNext

Exit_Command57_Click:
Exit Sub

Err_Command57_Click:
MsgBox Err.Description
Resume Exit_Command57_Click

End Sub
Private Sub Command58_Click()
On Error GoTo Err_Command58_Click

Dim stDocName As String

stDocName = "Bulletin Board Mailout Labels"
DoCmd.OpenReport stDocName, acPreview

Exit_Command58_Click:
Exit Sub

Err_Command58_Click:
MsgBox Err.Description
Resume Exit_Command58_Click

End Sub