Lately our main shop pc is slowing down, for instance, when I click to change customers in our management screen, the hourglass shows up for a couple seconds instead of just flipping right to the next customer. It acts like there is something running in the background that is slowing us down. What should I look for? My system is: Intel Core 2 Duo E6600 @ 2.4/3 GB DDR2/233GB WD SATA/Windows XP Professional 32-bit SP3