I actually have to deal with this problem on an ongoing basis. As to turning down the graphics: I did that, turned EVERYTHING down to 1, and went in the game to test. Lo and behold, still happening.

Frankly, I think this has more to do with the fact that the graphics engine is horribly unoptimized for general chipsets than that there is something specifically "wrong" with these players' machines. The reason I say that is my wife's machine, who sits right next to me, doesn't have this problem EVER, and her machine is considerably less powerful than my machine.

I'm holding out hope that as the graphics engine is optimized moving towards 2.0 (and even the developers admit that the engine is not optimized now) that these kinds of problems will be fixed.

Here are my stats:
Time of this report: 2/21/2012, 08:32:13
Machine name: JAMES-PC
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.110622-1506)
Language: English (Regional Setting: English)
System Manufacturer: MSI
System Model: MS-7696
BIOS: BIOS Date: 06/18/11 00:14:42 Ver: 04.06.05
Processor: AMD A8-3850 APU with Radeon(tm) HD Graphics (4 CPUs), ~2.9GHz
Memory: 8192MB RAM
Available OS Memory: 7670MB RAM
Page File: 2314MB used, 13023MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

Video:
Card name: AMD Radeon HD 6550D
Manufacturer: Advanced Micro Devices, Inc.
Chip type: ATI display adapter (0x9640)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_9640&SUBSYS_76961462&REV_00
Display Memory: 4071 MB
Dedicated Memory: 493 MB
Shared Memory: 3578 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Acer S231HL(Analog)
Monitor Model: Acer S231HL
Monitor Id: ACR01A6
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: DVI

So yeah. My specs are clearly above the minimum system specs; I maintain that it's a problem with the graphics engine.