Hey all I am new here and boy do I have an interesting problem. Right to the chase, I have a two year old HP S3100N Slimline. I have a fresh install of Vista Home Premium with all the recent updates installed. Here is my issue, I had a problem with my processor ( AMD x64 dual core 2.1ghz ) overheating (in upwards of 60*C) due to bad thermal paste. So I thought BINGO, I redo the paste and here we go again with the freezing. It's not locking up but it will freeze for two or three seconds then go for five and so on until Monday. On Monday it will run fine for a while then start up again but now it will freeze indefinitely until I grab my heat sink and move it either up, down, or towards me and hold it there to keep it going, if I let go it freezes again so I do it again and it then works even after I let it go. One other thing is if I choose to restart the computer I have to turn it on and off several times while fidgeting with the heat sink to get it do even enter the bios but once it start the boot process it works fine for a while. Now I have tested my cpu fan which is ok, tested my processor temp and voltage which is good. I'm wondering if maybe the motherboard has issues or if there is anyone out there who has had this happen and can help me. FYI my motherboard is an ASUS M2NC51-AR. Any help would be very much appreciated.