>I think I have an idea of what's going on here. When a dataenvironment is first created everything is fine. If the dataenvironment is edited, the cursor objects get corrupted somehow. If I remove all the cursor objects and re-add them, everything runs fine again. I havn't had time to trace what's going because of pending deadlines, but this is a good heads up to find the problem.>

To fix this, change the following code in CCursor.Initialize():

Change…
IF NOT EMPTY(This.CursorSource)

To…
IF NOT EMPTY(This.CursorSource) AND NOT '[' $ This.CursorSource

Regards,