Vista Trouble!

I fibnally got the home premium Vista, but some of it rocks, and some of it sucks.
1. Dell's warranty doesn't cover it now since it originally had XP.
2. As I was installing it, I left it while I was sleeping, and I guess it turned off to save power, and I don't think it installed properly. Sometimes at the log in screen when I first turn it on, there are all of these ape **** flashing green lights, a few black screens come up saying Windows didn't shut down or some programs weren't installed or some crap like that.
3. The on the Norton 360, it says I need more backup. Dunno if this has anything to do with it...
I guess 2. is the biggest problem, so if anyone can help me it'd be great.
1. Dell's warranty doesn't cover it now since it originally had XP.
2. As I was installing it, I left it while I was sleeping, and I guess it turned off to save power, and I don't think it installed properly. Sometimes at the log in screen when I first turn it on, there are all of these ape **** flashing green lights, a few black screens come up saying Windows didn't shut down or some programs weren't installed or some crap like that.
3. The on the Norton 360, it says I need more backup. Dunno if this has anything to do with it...
I guess 2. is the biggest problem, so if anyone can help me it'd be great.