hi everyone. recently my computer started acting really weird, it would automaticaly restart without any reason or pattern. it doesn´t report any error in the event viewer. i don´t get BSOD. there was a period of time when it wouldn´t even let me log in windows, it would keep restarting before the login. now it lets me stay on for a while, but it would restart for example when i try to load a cd. but not only then. i tried to reisntall windows, but it would restart in the process. i ran memtest, it was ok. it is not overheating. no bad caps. i recently changed my graphic card, i´ve put the SiS 315_315E (i´ve borrowed that one from a friend, so i´m not sure of a real name. my old one broke. it was MSI Radeon 9200SE) i have windows XP with SP2 CPU/Processor : amd athlon 2083 MHz RAM : major pc3200 Actual:512 MB Motherboard : KT6 delta-FISR Hard Disk : MAXTOR 6Y160L0, Space: 160 GB, RPM:7200 please help, cause i´m getting desperate thank you.