On the 512mb-
I had that problem for a while but i just fiddled with it for a bit -
Menu - "sys.thingy" - backlight options (there are two different backlight settings, chose the second) - edit to different numbers.
Mine now stays a tastefull green (::
All i need to do now is find some firmware since the main site seems to be down...
LcR
October 2005