Well, after the Fujitsu BIOS splash screen, it just goes black. Usually, it enters the Windows 7 startup screen. I tried pressing F8 to no avail. Here's another thing too: Both 1GB RAM sticks that work with our ST5112 have "2Rx8" on their labels (so, "1GB 2Rx8 PC2-5300S"). However, the 2GB sticks that don't work have "256Mx6" in their labels ("2GB 200-PIN DDR2 SODIMM 256Mx6"). Could it be some sort of compatibility issue with the RAM such that the module configuration has to be exact? If you don't mind, does your ram have "2Rx8" on its label? Also, where did you order your RAM? So far, Crucial and PCMemoryStore doesn't seem to be working for us. We tried contacting Crucial. They told us that sometimes, when you change out the RAM, the PC/tablet may not recognize it and won't know what to do with it. We may need to reinstall the OS. When we contacted Fujitsu, the representative told us that we may need recovery CDs ($50 from Fujitsu). We're currently trying to contact the Ebay seller to see if s/he has any.