I have a simple Celeron 1000 computer running windows 2000 that I use for everyday things & I decided to get more RAM. I have Infineon 128 MB PC133 SDRAM 168 pin DIMM & then I got a Kingston 128 MB PC133 SDRAM CL3 168 pin DIMM. When I boot up startup is fine, it reconizes I now have 256mb (less 16 for the shared memory on video card) up to the windows screen I get the blue screen saying there is a Page fault in a non paged area and everytime I get that error the file ntos.sys (I can't remember exactly what file it said) had some error & sometimes it's another file. I have two hard drives & the virtial memory was on the D drive & so I changed it back to the C drive but stil I get the error. People said that using different memory usually creates no problem because I have done this on older systems but it's not working here. Are there any suggestions on changing setup configurations or are these two brands not going to work?