Reply To: Performance Issues following Upgrade from CS2 to CS5.5

The only thing I'd suggest is check that all the dirvers are up to date for the graphics card

Right Click on “My Computer” go to “Manage” select “Device Manager” select “Display Adapters” and expand the view by pressing the plus symbol. Right click on the items in the tree structure and choose “Update Driver” when prompted select “Install Software Automatically”