i recently purchased 2 Centon 256mb PC133 memory. i removed the original 128mb PC100 from the computer and added the 2 Centon 256mb PC133 memory. When i booted my computer nothing happened(I had a blank screen) I switched it back to the 128mb PC100 and it booted correctly. Does that mean that the PC133 is not compatible with my motherboard or did i have to run a specific setup? Should I just purchase 256mb PC100 instead? thanks.