Hi Andrew does your combo has an Assign mrthod for the value property?
If so this is what is generating the GPF.

>I have tried this in both VFP 6.0 and 7.0 and get the same result.
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>I have a ComboBox class (extended from work found here on the Thread) that mimics QuickBooks interface elements. The class finally works just the way I want it to, except for one glaring problem.
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>If I have the control on the form it works A-OK. If I put the control inside the grid as a column active control oject, I get a GPF when I run the form.
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>I have spent a fair amount of time trying to understand/fix this problem, but do not know what else to try, so I turn to the Thread.
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>Is there a channel whereby I can approach MS with this? If there is anybody here that would like to take a look at it, I have made a small demonstration form that I can submit.
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>Thanks in advance,
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>Andrew Jennings