NETMF GUI alignment problem


I am using NETMF 4.1 SDK and GHI electronics SDK 4.1

sometimes i am gettings problem in GUI controls alignment,
GUI is made up of jpg images with NETMF classes using “Microsoft.SPOT.Presentation.RichMediaControls”

i am getting exception in “OnRender()” intrrupt function
exception is “ObjectDisposed()” , after that GUI of page is become un align and memory get corrupted
when i restart application , i can not get flash memory data back.

How to resolve this problem , can somebody help uregently ?

Please show your code.