It looks fine on my PC and I have a laptop with a Radeon HD 7670M with an i5 2450M. It does look like something with the settings, but you said you messed with settings and it didn't help. Maybe your graphics card's drivers need updating? I'm at a loss. Maybe there is someone else on here who had this issue who can help. What are your settings?
.:My Laptop Specs:.
Model: Acer Aspire AS7750G-6857 17.3" LED
Operating System: Windows 7 Home Premium x64
Processor/CPU: Intel 2nd Generation Core i5 2450M (Clocked at 2.9GHz with ThrottleStop)
Integrated Video Card/GPU: Intel HD 3000
Dedicated Video Card/GPU: AMD Radeon HD 7670M
Memory/RAM: 6GB DDR3 SDRAM
Model: Acer Aspire AS7750G-6857 17.3" LED
Operating System: Windows 7 Home Premium x64
Processor/CPU: Intel 2nd Generation Core i5 2450M (Clocked at 2.9GHz with ThrottleStop)
Integrated Video Card/GPU: Intel HD 3000
Dedicated Video Card/GPU: AMD Radeon HD 7670M
Memory/RAM: 6GB DDR3 SDRAM