Hi got a slow pc pentium 3 866 mhz..512mb memory.windows xp pro service pack 2 all updates checked for viruses with norton..checked for spyware withe spy sweeper and adaware all clean...did a full format and reinstall pc the same..pc was capable of playing dvd's but not any more very jerky....spysweeper takes approx 30 mins to scan it did take about 8.. slow opening programs does not like more than one program open at once any sugestions to problem ie processor....memory ...harddrive..motherboard..other..it was that bad i got another pc...but would be gould to fix.....thanks for any advise