Computer screens act grazy...

Hi!
Out of nothing my screens starts to act weird when I am in FCP.
After been editing a while the screens turn blue and after a little while they come back to normal. But then when I play my videomaterial it jitter on the computerscreen - the picture onlys moves a frame og two - not coming anywhere but on my tv-monitor it plays out fine.
This repeats from time to time.
My setup is dual screeen with a ATI Radeon 9600 board
A Kona LH card
Ciproco mediavault fiber-discs
Running system 10.4.11 and FCP 6.04. Having 2.5 GB RAM on a 2GHz dual power PC.

Any ideas???

I have trashed prefs - reset system parameters - repaired disc permissions....

Kind regards
Henrik

Hi Henrik,

The only thing that I might suggest would be to zap your Pram, tho this sounds more like a setting on your Kona card.

To zap Pram, restart your Mac while holding down the p r option and command keys. Continue to hold dow until you hear three startup bongs, then release the keys.

--ken