form

Hi i'am programming my first macro with Solidworks VS .   On debug mode ( step into ) all going well but when i call my FORM, they apear but the form are all white (like vike a video card driver problem ) but, if i buidl the DLL and run it, the form are correct.

And when i use the start debugging mode, the FORM open and close immediately.   Did you know how to solve my problem???

PS, excuse my english, I'am a french guy.My code is vb.net

SolidworksApi macros