Help - Can't play back any more

[Narley]

My Pioneer 106RD rev 1.07 is playing back garbled screen made up of alternate green & purple blocks.
It is the same for original & burn't DVD's.
It still burns OK and plays CD etc but just produces garbage on playback.
I think it must be OS software or something cos i've just swapped in an LG unit and it does exactly the same.
I have Power DVD XP and also latest Windows media player.
set for region 2.
Can anyone suggest what may be wrong?

thanks

[setarip]

Check to see if your videocard is securely seated/connected...

[Narley]

Card is OK.
In desperation I have installed a trial of Windvd.
This works perfectly!!

For some reason the other decoders are no longer operating.
Can't work out why?

[setarip]

WinDVD uses its own MPEG-2 (DVD) video driver. I suspect that, prior to installing WinDVD, whatever MPEG-2 driver you had installed on your system had somehow been corrupted...

[Narley]

Thanks setarip, i'm thinking along the same lines myself.
I have uninstalled Power dvd and reinstalled but still doesn't work.
Do you know how to reinstall the mpeg-2 decoder driver?

[setarip]

If your O/S is WinXP, simply perform a "System Restore", going back to the last time PowerDVD worked properly...

[Narley]

Oops,
System Restore disabled