check your power options to   never....and use ebuyer not dabs..and scan uk are magic..maybe the graphics card /pc is gettting hot?OK, cheers guys for the help you have given i will ring AMD or drop them an e-mail.. i better rap this thread up  or i will be always replying cheers again.You can post as many TIMES as you'd like..i have just re-installed XP as well as installed SP1 and went through the long pain in the *censored* process of phoning the code through becuase i have max'ed my installation attempts :/ that sux's, gonna try and run the games again.. will keep ya posted.right, ran benchmark from mad onion and it blanked screen and sound went off again.. so it can't be software related. i installed AMD 64 drivers and all the latest sound gfx drivers, as well as motherboard drivers. i am REALLY stuck for ideas :/Did you format your HARDDISK before reinstalling Windows XP?yeah completely un partitioned then re partition the drive full NTFS format and everythingcan you update us ...and tell us where you are now on this problem...saves the eyes...