hi there i just bought myself 2 sticks of 256 pc133 sdram for my laptop and put them in and it doesnt do anything i tried 1 of the 256 same deal but if i mix the 128 with the 256 it boots but doesnt go past the loading to windows i know it supports pc133 because the 128stick is a pc133 im not understanding why it wont accept the 2 256 sticks i bought the from memory-up was told they were good if anyone could help that would be great