If your just out of warranty, like a few weeks or so, I'd give Dell a call. When I got my laptop from them, they couldn't do enough to help me, I also called them a few times on some random issues with it and they're tech support was great. The only words of advice I can give you is kill them with kindness, praise their product and mabey they'll cover your back. Good luck.
Oh yeah, does the light flash say orange a few times then green. Dell uses the power on light as a trouble shooter. If so mabey you can google the color code or check dell site for it.
1985 Honda 125M (My first Trike--Still have it)
1986 Honda 250SX
1981 Honda 110
1982 Honda 110
1986 Yamaha YFM80 (Sons quad)
Past rides: 1983, 1984 200X, 3--1985 Kawasaki T-3
1987 CR-80, 70's vintage XR75, RM 370