I have just installed 128MB of new PC133 SDRAM to an IBM Aptiva Desktop. It ran fine for a while, an hour or two, then when I turned it off and back on, no video. I thought maybe the video card, which is onboard, went bad. I installed a PCI Matrox video card. Video returned. It ran the memory check to 64MB. The original amount of RAM, and locked up. I rebooted, NO VIDEO. I removed the new RAM. No Change. I removed the old RAM. No Change. I put in only the new RAM. No Change. I tried booting with no RAM. I got the POST error for not being able to find the first 64K of memory. I've taken out the battery to clear the CMOS. No Luck. Anyone out there have any suggestions?