I have an HP Pentium II system with 320 Mb RAM and two 80 Gb hard drives (one drive is used as a primary; the other is used as a destination drive for backups). I run Windows 98. Prior to our local cable company installing an Ethernet card for high-speed Internet access, my system worked quite well. Basically, they installed a cheap card; although it's plug and play compatible, the system didn't want to accept it, but it did eventually. While on the Internet, my system crashed entirely. When I rebooted, I got the "black screen of death," i.e., "No Operating System Found." I booted with a startup disk, restored all my data from my second drive, and restarted my system. When I was on the phone with the cable company's tech support, he restored a previous (month old) version of my registry file and suggested that I install a new Ethernet card, which I did. My system runs well now as long as I'm actively using it. It slows/freezes during long periods of inactivity on screen saver (like overnight). I've already tried (1) Checking my Device Manager (2) Ran Norton Utilities and corrected invalid links (3) Changed screen savers (4) Reinstalled Windows 98 (4) Checked my TSR programs for potential problems. Thoughts?