Catalyst 6.6 drivers + Alt-Tab = Lockup

[mr.peanut 1]

I installed the latest Catalyst drivers 6.6 on my computer recently, and since doing so an Alt-Tab from within OFP often leads to a complete system lockup. GPU is ATI Radeon x850XT.  Anybody else experiencing this problem?

[456820 0]

Not had any experience with those drivers but usually an alt+tab can cuase system lock ups due to the resolution on your desktop being the same to yours on ofp.

Try changing them about and see what happens.

My desktop is - 1152x864

My ofp is the max it goes.

Try them and see if it works for you.

[mr.peanut 1]

That type of lockup results from having the same resolution and refresh rate i.e. set to same resolution but different refresh works.  It is not a lock up per se but simply a blackout of the screen. My lockup is a true lockup i.e. keyboard and mouse buffer overflow beeps etc.