I don't have faith in OEMs in keep their images up to date. That's one the vast majority of us wipe an OEM system clean, in the rare event we buy one. Those OEM updaters can be trouble, too, especially if the flash the BIOS without asking you.
You could try a clean install. Since it is new, you should have recovery discs...or should have a tool to create them. Then wipe the drive and do a clean install with all latest drivers. Not only will your system be a lot more responsive, but then you;ll know for sure if it is a hardware or software problem.
System Manufacturer/Model Number Home Built OS Windows 7 SP1 x64 CPU AMD 9850 X4 Motherboard ASUS Memory Corsair Graphics Card ATI Radeon Sound Card Sigmatel Monitor(s) Displays Dell Screen Resolution 1600X900
Cooling Corsair H60 Hard Drives (1) WD 1TB Internet Speed UVerse 12MB