Sql Datasource Insert Error

hii,,i am using asp.net 2005 and sql server 2005...

i m using sql data source in my form,,i want to insert the details into a table using the insert command thr sqldatasource....one of the column name is service_w/lb, this is where i get an error.i am not able to insert the new data..here is my code::::

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<asp:SqlDataSource ID="SqlDataSource1" runat="server"

ConnectionString="<%$ ConnectionStrings:sm123_trackerConnectionString %>"SelectCommand="SELECT * FROM [Agency_Master]"

InsertCommand="INSERT INTO [Agency_Master] ([Agency_Id], [Agency_Main_Contact], [Agency_Invoice_Contact], [Address], [Email_Address], [Phone], [Mobile], [Fax], [TimeZone_Id], [Agency_Name], [Service_w/LB], [Notes], [Technology_Used], [Status with LB]) VALUES (@Agency_Id, @Agency_Main_Contact, @Agency_Invoice_Contact, @Address, @Email_Address, @Phone, @Mobile, @Fax, @TimeZone_Id, @Agency_Name, @Service_w/LB, @Notes, @Technology_Used, @Status_with_LB)"

OldValuesParameterFormatString="original_{0}"

>

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even if i put it as @[service_w/Lb] i get an error....here is the error i get

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Incorrect syntax near 'nvarchar'.
The name "Service_w" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.____________________

pls reply as soon as possible ,,,thnks in advance