ADO Recordset Update

Hi,
I've got a problem to use Update to modify a record in a SQL Server table. The
methode triggers a access violation message like this:
First-chance exception in PIMDBM.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception.
Error:80004005.
ErrorMessage:Unspecified error.
Source:Microsoft OLE DB Provider for ODBC Drivers.
Description:[Microsoft][ODBC SQL Server Driver]Syntax error or access violation.

I'm using VC++6.0, ADO 2.0 and SQL Server 6.5.

If someone can help me. Many thanks in advance.

It is very difficult to help from what you have given. If you can give portion of your concerned code, it will be easy to answer.
general tips are:
chech if you haven't closed the table before you apply update()