XP model Collapsable panel

Question

Hi,


I do have a problem with my XP panel.I had made one based on Mathew Halls XP style collapsable panel.Its the same Collapsable side panel we see in the windowsXP.Now i have integrated this in my project.There is a base container which contains the panels.Now when i move the ´scrollbar the panels and the text written gets disfigured


One more thing is if i am running this application in a system with low speed the painting of the controls is very difficult.I find it difficult to move the scrollbars

Could someone please guide me