I'm running Windows XP and for the past couple of weeks my PC keeps freezing, including the taskbar. I did a Destructive Recovery, thinking I had a virus, and ran full system scan using MALWAREBYTES and AVG2011. I'm still having the same problem. I'm using Mazilla Firefox as my browser and it seems that when I'm using the taskbar to move between internet and other applications that's what's causing the freezing. Coincident or could that be part of the problem? Any suggestions? Thanks in advance for your help. ps. Please do not offer suggestions of malware or anti virus software. Thanks!