We just upgraded from XP to Windows 7. Why does the CX application flicker?

Environment:

All supported versions

Resolution:

The screen flickering with Windows 7 and the CX application is a Windows 7 design limitation based on the kernel stack size. Once the hierarchy of windows exceeds a certain size, screen flickering and flickering of the CX application can be seen.

This screen flicker is more prevalent in the 64-bit version of Windows 7.

Some things you can do to reduce this flickering are:

Ensure that your video card is compatible with Windows 7 and that the newest drivers for the video card are installed. To check your video card, follow this link:

http://www.microsoft.com/windows/compatibility/windows-7/en-us/Browse.aspx?type=Hardware&category=Graphics%20Cards%20%26%20Components&subcategory=Graphics%20Cards

Also, ensure that your BIOS, Chipset, and NIC drivers are up to date.

Consider redesigning your workspace and or reducing the number of nested tabs within the application.

Notes:

The links below provide more information regarding screen flickering with Windows 7.

http://blogs.msdn.com/b/alejacma/archive/2009/08/11/controls-won-t-get-resized-once-the-nesting-hierarchy-of-windows-exceeds-a-certain-depth-x64.aspx

http://blogs.technet.com/b/markrussinovich/archive/2009/07/08/3261309.aspx

http://msdn.microsoft.com/en-us/library/windows/hardware/ff565536(v=vs.85).aspx