System Freezing on 7.2-x64

Hello. I'm getting a hard system freeze after periods of inactivity. It happens a while after the screen saver comes on. I'll come back to the computer and the screen saver will be frozen on the screen and unresponsive to even keyboard lights. This is something new to the 7.2 version.

Thanks

FWIW, I had a similar problem some versions back with screensavers that use a
'Ripples' effect which my video or video driver didn't like. That problem
went away for me with Version 7.0.5.

If you are using the standard Knoppix screensaver, which rotates randomly
through many selections, you might want to selectively remove some of the
selections to see if you can localize your problem to just a few selections
as I was able to do.

Also don't forget to do a testcd on your LiveUSB if that's what you are using.

Okay, thanks.