Hello All I have a 2006 Mac Pro 2.66. I purchased the 8800GT Upgrade Kit from Apple's Online Store in early 08 when it became available. Several months ago I installed the 10.6.2 update, and upon restart I got to the Apple Icon and spinning progress wheel.. Then jagged horizontal lines. No further progress. Now to my question. Is there anything I can do? Is it possible that a reflash could remedy this issue? I have read many threads regarding flashing newish ATI Cards for use with the MacPro. I would consider purchasing a new card for reflash purposes.. But If there is a way I can fix my current 8800GT, that would be awesome. Thanks in advance for any help any of you can provide!