Hello all, I am new here but would like to say the AMD 64 is by far the best processor I have ever bought. I upgraded from a Barton 2500 that overclocked very well. Even with a slower clock speed it is running great. I am not one bit sorry I made the move. I have just recently added the X800PRO to the system and it has jumped my AuqaMark 3 scores up to over twice what they were with my old graphics card. As far as stability issues I can honestly say I have not had 1 processor caused crash. So it is very much stable. I have tested the Windows XP 64 Bit but it is a very unstable operating system and there are major conflicts between it and the new ATI 64 bit drivers.