Apple just started Seeding developer builds of 10.6.5. The are asking testers to focus on certain things. Two specifically are 3D graphics and quicktime.

This information is based off of preliminary discussion but there are no details on what things in QT or 3d graphics.

However, based on noise around tech forums, there's a hope there might be a fix.

Please do not take this information as fact. However, optimistically 10.6.5 might have solutions that will help us with our problems.