My gauges have gone crazy...They have stopped working twice(needles drop and my odo(its digital) reads " /``'' ". The first time it happened it was right after two full gears at WOT(yes, I have an auto) the second time I noticed it as I was putting my car in park. Both times it happened at night, but the first time it fixed itself, the second time it cleared itself up after I restarted it about 15 mins. later, but when I restarted it my overdrive off light flashed a few times then turned off(it is supposed to just light up once then turn off). What is up with my gauges? Oh, I have a 2000 Sentra SE. Any help is appreciated, later.