Claude, I had this problem too. The screen would just black out mysteriously and then return again, without any seeming rhyme or reason. Nothing else seemed to be affected, except my nerves. I had just gotten the fantastic KDE-3.4 for Redhat from kde-redhat.sourceforge.net installed, and then this. I began to blame kde-redhat and myself, for having risked the installation, but the lure of finally getting everything working like it should was too great. I was wrong... KDE for Redhat is the best! Anyway, back to the solution I found. The problem seemed to be dpms. Go into KDE Control Centre and disable dpms under Peripherals/Display/Power Control. This seems to do it just fine. I have never had the problem again. If you are using another window manager, and just to be on the safe side, put a '#' in front of the line "Option dpms" in the monitor section of your /etc/X11/xorg.conf file. I read through the thread and somewhere noticed mention of nvidia. I am not sure whether you have an nvidia display adaptor (I have), but the nvidia driver README.txt says that DPMS is experimental and not fully supported. So far, they have only implemented the most rudimentary functions, like screen blanking. And who wants that, with the beautiful X screensavers... I hope this helps. Sorry my 2¢ have taken so long, but I just joined this list. Pete ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca