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We faced this problem specifically for GP 9. We tried a host of steps, then created a support ticket, submitted information log and trace info to Microsoft, and what actually fixed it was - moving to the latest service pack.
I'll put the information here - in case somebody finds it useful.
1 Check that you are running the latest service pack for Great Plains AND MSSQL.
I was used to ignoring this, and "Apply the latest windows updates" suggestion. But sometimes, this is the only thing that fixes things.
2 Check if tracing is turned on for all ODBC's
If tracing is enabled - there will be a sql…
Frank in his today’s tip pointed us to “SY07110” table that contains the user’s menu’s information, delete…
As a follow on from the post last week on capturing the logging in and logging out events in Microsoft Dynamics GP, I want to cover how to open a form after logging into Microsoft Dynamics GP. This could be a hidden form used by your code or a window that you want to open automatically.
Please refer to the previous post for the underlying scripts:

Up at DynamicsCare now Amy Walsh gets a look at the GP 2010 beta and shows off the new…