It all started when i checked my HD and found some bad blocks. I also got BSOD from time to time. So I decided to get a new HD (Seagate 80G IDE). I installed it and BIOS recongnized it. But when installing WinXP i've got "Setup cannot copy file". I've tried it several times and it happened to the same files again. I've installed this new HD on another computer and Windows installed ok there. So I guess my new HD is ok. Then i tested my memory. And I've got huge number of errors starting from the first pass. So i replaced my old 256 SDRAM with new 512 DDR (i switched 10 f****** jumpers for this on my mobo!!!). I still got some memory errors but was able to install WinXP on my HD. It worked for a while and now I get BSODs again and can't boot to my new WinXP. I know I sound crazy 'cause I want this old thing working. But I just don't want to throw everything away! I want to know what's wrong.