MSI R9 270 Gaming issues

To start with, the LCD screen I have is LG E2240S

Serial number of the card is   
602-V305-01SB1311012861

Bios version is
015.041.000.000.003038 (113-C6300100-X01)

Driver is the 13.12. WHQL version

Windows 7 SP1 x64


I am experiencing a problem in game...