mac pro 10.5.7

My mac pro freezes upon starting. Stop times I get "static" type lines of color running across my 23" HD cinema screen other times it just loads the dock station and not my desktop files. I have unplugged all periphals, unplugged all cords from computer and waited to turn on. Updated software for my wacom tablet. It usually takes me 3 or 4 times of force quit to get it to turn on and look correct. Other times when it looks like it turned on okay, I get the spinning wheel. Any help would be appreciate. Thanks.

I'd start by running a hardware test, this could be the video card by the sound of it.
Also try running disc utility/disc repair and maybe zap the PRAM and reset NVRAM.

But be aware that even extended hardware check will not always pick up a video problem. Just had my logic board replaced for Video problem and before that even after 4 extended hardware checks i got no problems reported. Each time i got normal operation after Zapping the PRAM, doing hardware check until the next demand on the video when it locked up again.

mac pro

Thanks, that seems to have worked with resetting pram and nvram. Appreciate your help.

I was wrong... it didn't work

Hi, I turned out my computer this morning and the little wheel spinned, forced quit, turned on again and this time my monitor is flashing different colors and patterns like a tv screen. Any suggestions?

Sounds like time for the Apple Certified Technician

thanks

I think you are right. I'm backing up now. I will post the results for the next poor mac user;D