Navigation Screen Went Dark

[Hoho88]

My GS300'06 Navigation just went dark. The radio still work, and the fan is still blowing. However, the screen, clock, and AC bottoms all are nonfunctional. Right before it went completely dark, the clock was showing 9:00 for about 5 minutes before it automatically adjusted to the right time. The next symptoms was the whole navigation system rebooted and appeared to be functional until this afternoon when I started the car, the whole nav, clock and ac bottom were all non-functional. Checked all the fuses, and they all appear to be good. Please help. Thanks.

[cduluk]

How's your car battery? Try unplugging the battery (either terminal) for a half hour and plugging it back in.