I've searched for three days for an answer to this problem. Results: A lot of people have or had this problem, but no one seems to know the answer to fixing it. I've searched endless threads on endless forums and found zero answers to the problem. Most people responded by saying they have the same problem and it eventually just went away, came back or they switched to XP/ Linux OS. Frustrating! The system was non functional from day one. Brand new system. Only internet access was to mfg. websites. i.e. Nero, Windows update, Dell. I doubt I have a virus and KIS 2009 was installed after MS updates and prior to connecting to above websites. I have since reformatted C:, reinstalled the OS from the hidden Dell recovery partition, removed the Nero stuff, KIS 2009, DVD drive, and floppy drive. I have not accessed the internet since other than MS update. Prior to installing this stuff the system was still dead dog slow. I was very careful installing and removing the drives as to not short anything out, no wires are loose, memory is secure and in place. CPU fan is working, case fan is working, DVD rom is working. HDD? I haven't tested it. Maybe it was bunk from the factory. I'm not sure how to test it. My Dell warranty expired two days ago. I have not messed w' this system since I bought it a year ago because it was so slow. I figured it was the memory and would wait to mess with it until I got more memory. I don't need the system, have others, but intended to get it functional and give it to my kid as a gift. He needs a system. Problem: every aspect of operation is extremely slow, almost non-operational. processes running in tskmgr are consuming 100% of the CPU, 100% of the time. The memory is between 47 and 70% used up. tskmger.exe, System, and one or two other MS processes are listed as consuming the CPU, mainly tskmgr and system! The only non MS services are google desktop, Google search, and Dell suport center? It takes 5 minutes or more to startup or shutdown, open control panel, event viewer, etc. Lots of (not responding)! There are alot of errors, warnings, etc. in the event viewer for Windows. System boot, system shutdown, etc. All errors apparently relate to the OS. Also, when I shut the system down, the power button on the case stays lit as if it's in sleep or hibernation. I've set Windows to shut down, not sleep or hibernate. It won't restart unless I hold the power button down for a few seconds to shut it off, then repress the power button to start it up. Windows update takes forever, 8 hours or more and the internet connection seems dead dog slow as well. Other systems on same cable work fine! System: Dell vostro 200, Windows Vista Home Basic, celeron 430 1.8 GHz, G33/G31 express chipset family, 1 GB DDR2 memory, integrated sound, NIC and video w' shared memory of 128 MB or so? 80 Gb, 7200rpm SATA HDD, DVD rom. Attempts: Reformatted C: and re-installed OS from Dell recovery partition. Ran memtest86+ in STD mode for 8 hours w' no errors. Tried using Ubuntu Live CD and it just stalled after asking for language, etc. Black screen! I disabled Windows search, indexing, Google desktop, search. Set system for maximum performance, i.e. It looks like windows 98, 2000??! No improvement! I've physically inspected the memory, MB and all hardware and connections. Everything "looks" fine. I have the System disk and drivers from Dell and at this point my only option is to test the HDD? and/ or wipe the HDD, hidden partition and all, reinstall, OS, sp1, and drivers and utilities from disk. Please help! I realize the Celeron w' 1Gb shared memory w' video is probably undersized but it should function, shouldn't it? Others have said it does. There is nothing installed on the computer other than Dell support stuff and Google desktop stuff that it came with from factory. I can't rule out a defective HDD or MB, malware, virus, but have had no bluescreens and very limited internet access, as stated above, all while fully protected via KIS 2009.