Printable View
When I open a form and right after opening it does something (open a file or so),
then for a while (seconds) only a part of the form come's on the screen.
After the file is loaded then all of the form is visible.
Is it normal ? (all works well but its not nice to see)
It just means the program is busy opening and reading the file and doesn't have time to fully show the form. If oyur file opening code has loops in it, you can try putting DoEvents in it.
Sunny
It's just not repainting. I think you can set the form's redraw properties to change this behavior if desired but it's a pretty common thing to see in Windows applications.