>I run NT workstation on my PC and VFP 5.0. Everything was working fine. But this morning when I try to save or close formset whith 3 forms and 1 small toolbar it crashes foxpro with error "Exeption: access violation ....". Just this formset, just one, everything else is perfect, but this one - the one I need to work with, crashes...
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>I've tried to move it on network drive, to change location. It is not working everywhere.

I have had this happen at time with Win95 and WinNT using VFP3. I assume you have tried rebooting. The form could be corrupt. Try creating a new form and pasting all of the bits from the old form into it.