MY charts started to look like scribble lines a few days ago...I did a check with PC doctor. The results was that the processor failed the math test and or numeric test. Everything runs fine on my computer with the exception of my charts. I have a pentium 4 3.06ghz...I think that if I buy and replace this...it will take care of the problem. Am I right? I have taken it out and replaced it (Fan, Heat Sink and Chip) Just to see what I could learn...everything still works the same. Now I am not a computer whiz...I know just enough to get myself into trouble...but I am not bashful about pulling it out and replacing it. Should I scrap the computer? or replace the chip. Please and Thanks.