I bought my Rig at that shop last year also......and the first day i bought it.....my rig keep restarting non stop if i run graphical program.........when i bring back....they say nothing wrong it is my windows problem...ask me go reformat...okay then when i go back and reformat....problem still same...bring back to them again....and they also tell me....they got alot pc to service...ask me to put there and collect after a week...i am like so *&%&*....in the end i take back my pc.....and i end up using my pc as normal internet PC.....