DateTime.Now Expression Expected Problem

Hi - I'm using VWD, VB, and created a dataset/tableadapter to insert a record into a SQL Express database.  The database has a couple of columns, but specifically a Datetime column.

Using the default insert created, I have the following code:

Dim da as New partyDetailsTableAdapters.partyDetailsTableAdapter
Profile.partyid = da.Insert(Profile.UserName, tbName.Text, DateTime.Now)

The compiler throws an error though, saying 'Expression expected' - and it squiggles an underline under the closing bracket after DateTime.Now - I have no problem if I'm trying to update a record using:

Dim da as New partyDetailsTableAdapters.partyDetailsTableAdapter
Dim pd as partyDetails.partyDetailsDataTable
pd = da.GetPartyDetailsByID(Profile.partyid)
da.Update(Profile.UserName, tbName.text, DateTime.Now, Profile.partyid, Profile.partyid)

Have I an error in my Insert section?

Thanks for any help,

Mark