The last few months my older Compaq AMD Athlon 1.6GHz, 520 MB DDR has been getting slower and slower loading programs. Defraged OK. Ran Hot CPU Tester Pro 4 (lite). OK Ran DocMemory Diagnostic Mats=failed March B=failed March C=failed checkerboard=failed Burst=failed I ran the test on my second computer. It's memory passed everything. So I swapped the memory between computers and ran DocMemory on both computers again. The second computer still passed, showing that the memory from the Compaq was actually good. The Compaq showed bad memory again, with memory that is good. So it appears that I have a problem, other than the CPU or memory, that makes the memory look and act bad. Any ideas.