UI Problem

HI,I begen to learn Blender recenlty
I install Blender 2.71 on Windows 8.1 64bit but the ui is wried…
What happend…?
Inspiron 5547
Notebook: Dell Inspiron 15-5547 (Inspiron 15 Series)
Processor: Intel Core i5 4210U
Graphics Adapter: AMD Radeon R7 M265 2048 MB
Display: 15.6 inch, 16:9, 1366x768 pixels, glossy: yes


My guess: Outdated graphics drivers. Try to install current ones and report back if that helped.