Ok here is the gimik

It happens on only 2 forms in my app
it happens when I hit one of my navigation buttons (top, previous, next, last) these buttons are in a class (nav.vcx) these buttons are on many forms that don't have the "error"

1st form inv_frm.scx (Inventory data form) loaded with more then 60 objects mostly lables, textboxes, checkboxes and comboboxes
Sign of error:
click the add button, screen looks like your still looking at a excisting record but if you drag a window in front of the vfp window or minamize and restore and the screen looks fine

2nd form admin.scx ( a form with less then 30 objects ) once again mainly lables, textboxes, graphical checkboxes and some shapes "for looks"
Sign of error:
I click one of the navbuttons and I can see part of a "shape" is cut off but the form still works fine just a edge of a shape is cut short, but then I click add and all lables and shapes are "invisible" and once again, but if you drag a window in front of the vfp window or minamize and restore and the screen looks fine

if I hit a navbutton on either form I get the error, but I have 10 more forms with the navbuttons and they never error, I mean never error I sat here for 3 hours trying to get another form to error but I couldn't

So I think it can't be the navbuttons class cause it isn't in ever form with these buttons, but if I remove these navbuttons from either form then the "error" stops

So I don't know what to say