I should have read your sig. :-)

Have you checked out http://fox.wikis.com/wc.dll?wiki~C0000005ExError

After applying SP3, I have found that C5 errors (for me) are now the result of programming bugs. If the wiki link doesn't help, start removing code from the form until you can find out what exactly causes the problem.

>I did that some time ago... Wonder if it is messed up somehow. I have rebuilt the application... I checked help/about and it said v6.0sp3...

>>Apply Service Pack 3 to your development machine and then to all of the computers your app runs on.

>>>I have an application that was ported from VFP5 to VFP6. I have one screen that if I open it up then close it then open it again I get an error that shuts down the application.
>>>
>>>

>>>Fatal Error Exception code C0000005
>>>Called from - ON... Line 34
>>>{C:\...\Main.prg}
>>>
>>>Line 34 is:
>>>
>>>READ EVENTS
>>>

>>>Does anyone have an idea where to start looking?
>>>
>>>Thanks