I have an Inspiron 1520 that I got from my parents. I went an started uninstalling a whole bunch of crap that they added. I think I may or may not have messed up my sound cards. In browser, no sound. In Steam (Gaming platform), no sound. In one game, WWII Online, I have sound. No where else does sound work. Under Steams "System Specs" page it lists that I have no sound card installed. Before, I had Sigmatel installed, and it says I still do. I went to the dell website, got the sound card for my computer, and when I tried to install it it said something about it not being for the correct computer. Help!