A Hi i am having some problems with my desktop the problems are,when i start up my desktop it ia all fine but when i get into the windows screen it is in 800x600 Resoloution and all my USB ports are shut down and i have scanned the HDD for vires but nothing has come up. My operating system is Windows XP have an isuse mother board 512 ram 2.0 processor and i would like some help fixing it. And i dont have the windows xp operating CD install. so if i need to do that could someone tell me where to get it that would be grate thanks.