I have noticed something odd on my G15v1 in windows 7. Whenever there is a bar on the screen (CPU/RAM usage, progress thorugh a track on WMP etc) there is a ghosting effect outside the bar to the left and right. The same keyboard in XP has no issues. Also, when I adjust the volume using the dial on the keyboard, it no longer pops up showing the volume level on the keyboard. I'm (apparently) on the latest software version, and I'm wondering if anyone else has this issue? Win7 x64 has the issue, XP 32 or 64 does not.
Game Panel Manager -> G15 LCD Enable Immediate display of high priority items Drag contrast to the lowest setting.
If you're using automatic switching, enable Klever-VU in Game Panel Manager -> G15 LCD. In Game Panel Manager -> Programs make sure Logitech Media Display is ticked on both sides, is set to automatically start and is allowed to force itself to the foreground.