I love my 3830TG Its served me very well. I got a super deal on it too back in 2011 for 480 off of Craigslist. i just wish they had soldered on the second msata connection so i could have put an ssd there.
There are a couple utilities out there that you could try. I would check out hirens boot cd first. The other option is to disassemble the laptop and remove the cmos battery and leave it overnight and reassemble.