New computer wierd "probem"

[Novodk]

I have finally got my new computer
1 stk. Enthusiast Series TX650 V2 (kr 493,60) kr 617,00
1 stk. Core i5-2500K - 3.3GHz/6MB/LGA1155 (kr 1.144,80) kr 1.431,00
1 stk. Frio Processor-køler (kr 319,20) kr 399,00
1 stk. P67 Extreme4 ATX (Sandy Bridge) (kr 866,40) kr 1.083,00
1 stk. 3,5" 1TB 'Caviar Black' SATA-600 7200rpm 64 MB (kr 442,40) kr 553,00
1 stk. LITEON 24xDVDRW SAW LS LT SATA (kr 148,00) kr 185,00
1 stk. N560GTX-TI TWIN FROZR II/OC VGA Card (kr 1.389,60) kr 1.737,00
1 stk. DDR3 PC1600 8GB CL9 kit VENGEANCE (kr 560,80) kr 701,00

It works fine i guess but when i move a window there is some strange gfx "lag" and when i extract files from winrar (5-10gb files) it takes very long compared to my old computer.

Is there somewhere/somehow i can check if everything is okay?

[BicycleMafioso]

Completely off-topic, but, this gives me serious flashbacks to WinXP :'o Good times.

[Deleted]

if you build it together yourself you might want to try to get the motherboard-Chipset drivers installen (wild guess)

[ayako]

Reboot safemode and http://phyxion.net/item/driver-sweeper-290.html

then reinstall the special 560 drivers from website.

http://www.geforce.com/#/Drivers/Results/29331

[Deleted]

You might want to install some drivers there..

[Deleted]

Its going to be a GPU or MB Chipset drivers.