The roll out of Internet explorer 9 has caused quite a few issues but the most annoying of all is the screen flickering caused by Internet explorer 9.
There are 3 possible ways to fix this issue with IE 9
1. Disable / Enable Software Rendering
Goto the tools menu (press ALT if menu not visible)
Tools -> Internet options -> Advanced Tab
Check or Uncheck " use software rendering instead of GPU rendering"
depending on which graphcis card you have and how update the drivers are
2. Uninstall /Disable Adobe Flash & shock wave player
some updates from windows suggests that the adobe plugin is causing flickering screens especially on pages displaying flash advertisements
goto Tools -> Internet Options -> Program Tab - > Manage add-ons
disable any shockwave or adobe flash plugins , and test to see if flickering occurs
3. Update graphics drivers
make sure you have up to date graphics card drivers to ensure it can handle GPU rendering if enabled in IE 9.
Visit your graphics card manufacturer and download the latest drivers, for laptops use the update utility.
If even that fails, try a reset of internet explorer . Under the advanced tab in internet options