Hd 5770 comiuter restarts

Hello i really sad Ive build my new compiuter hd5770+i5+gigabyte p55m-ud2, installed windows 7. Was playing warcraft all day with no issues yesterday but at the evening its start giving me errors 132,134, the compiuter reboot itself,then couple of times stop error 0x0000008E, then i restarted -error 0x0000000A. After that it was reboting itself with me doing anything i mean i was not playing just talking by skype. After all i got Catalyst Control Centre: Host application has stopped working *A problem caused the program stop working correctly. Now i cant even talk by skype-no voice- Scheduled agent setting file is corrupted...
(2006). Also i couldnt open my compiuter -:20D04FE0-3AEA-1069-A2D8-0800@B30309D) The remote procedure call failed and did not execute. I really dont know what to do.