I'm using Win XP Media Center Edition on a Toshiba laptop, and there are some weird things going on here. It all started, when I installed a performance booster, after saying a thousand times to mysef, that i'll never use such programs... Anyways, I installed it, i made it boost the system, and i didn't like it. I wanted to undo the things it did, but there was no backup or anything like that. So i simply uninstalled it, and after that the problems began. First the Mozilla Firefox didn't want to load pages. I wrote the adress, i picked it out from the bookmarks, or i used a link, it simply didn't load anything. I rebooted, and since that i didn't have problems with Mozilla, but no p2p download program would work. Until this BitLord and DC++ worked more than perfect, now they're just dumb memory eaters. And I tried Asureus and BitComet, and Utorrent, and now i'm so pissed off, that i'm determined to solve the problem and not install anything for a week - it really gets boring after a while. Please help me!