ok,
i got the same effect on my office machine. The mentioned lines do not appear in any screenshot, but trust me, they are there .
Here is the top bit of my debug.err from my office pc:
Display Info
Display device 1:
Device Name: \\.\DISPLAY1
Card Name: NVIDIA GeForce 8800 GTS 512
Manufacturer: NVIDIA
Chip Type: GeForce 8800 GTS 512
DAC Type: Integrated RAMDAC
Key Device: Enum\PCI\VEN_10DE&DEV_0600&SUBSYS_050210DE&REV_A2
Display Memory: 512.0 MB
Current Display Mode: 1280 x 1024 (32 bit) (60Hz)
Monitor Name: Plug und Play-Monitor
Monitor Max Resolution: 1600,1200
Driver Name: nv4_disp.dll
Driver Version: 6.14.0012.5896
Driver Date: 7/10/2010 00:38:00
DirectX Acceleration Enabled: Yes
Ill post the debug.err from my home pc later when I come back home...
Greetings,
Yigor