This laptop IS 64-bit. FYI, HP (Lenovo) made several versions of the R60 with different screen sizes, more or less RAM, and either 32 or 64 bit processors. I have 3 R60s - 1 is 32bit and 2 are 64 bit. Anyway, I checked in the PCLinuxOS Control Center and the Intel 810 or Later driver is installed. That being said, my original problem remains in that, with PCLinuxOS KDE 64-bit, after about 10 minutes the screen goes black and the only way to get it back is to reboot the pc. I found an older 32 bit version, loaded it, and it has the same problem so it appears to be a hardware issue to the Lenovo R60. I believe I have the screen saver disabled as well. Any other ideas?