easy question, please help

I posted earlier this message. No one answered so I think my problem is a
very common one and everybody knows its answer. I apologize for posting it
again, but please give me at least a hint of how to handle this annoying
redrawing problem:

Need help,

I have an ActiveX form opened in IE or Netscape( using Esker).
Sometimes but very often when I resize the IE/Netscape window the content
(my control) does not redraw itself correctly, instead there are a lot of
shapes (as OnDraw never triggered). Is there a remedy to this?

Thank you,