Dragan,
>If anyone knows this, let me know too before I spend too much time debugging.
I do not know crap, but, as a wild -late hour- guess, and reading that you mentioned that you have the problem with just one form, I would check that form's ScaleMode property
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges