I have a problem. At first my computer told me I only had 112 meg of memory and it should have been 128. A loss of 16 meg, so I assumed the chip was bad, and bought a new 256 chip, and put it in. However the computer now only shows 240 meg, A loss of 16 meg again. So now it looks like the problem is not in the chip, but something in the computer is gobbling up 16 meg of ram, and fouling up the rest of it. I can't even copy a floppy to my harddrive. It also tells me that a file, C:\CDROM\CDROM\cdtech.sys, is corrupted or missing.. I can find no such file on any disk that I have. Al Olry [log in to unmask] PCBUILD maintains hundreds of useful files for download visit our download web page at: http://freepctech.com/downloads.shtml