BSOD watching video online

I got a BSOD while watching a video.

BCCode: 101
BCP1: 0000000000000031
BCP2: 0000000000000000
BCP3: FFFFF88003164180
BCP4: 0000000000000002

Info:
Windows 7 64 bit
original OS on system
an OEM version
bought this laptop from dell in august 2010


I have experienced problems watching videos or playing music recently were sometimes it lags for a few seconds and the sound becomes very digitized and choppy. Also my computer crashed once this month watching another video, but I didn't get the BSOD. The same thing happened this time, only if froze and then I got the BSOD.

I don't know if this is related, but I've been experiencing problems during start up with windows. Periodically the computer freezes while loading windows on the 'Please Wait' screen, just before the login screen is displayed. Usually it happens multiple times consecutively, when I restart my computer from the first freeze it freezes again multiple times. I then have to spend the afternoon trying to turn my computer on, until I can get to the login screen without the computer freezing. This problem started in September, but is a periodic occurrence. I mentioned this because I thought it might be related, if it isn't should I post a new thread about it?

I've got a hardware problem too, but that's probably unrelated. The laptop speakers randomly stopped working a few months ago, I'm planning on sending it in to get fixed soon. Just thought I'd mention it in case it's relevant somehow.

Any help would be appreciated! I attached the dump files as indicated in the posting instructions.

Thank you,
Graeme

*EDIT: also a couple weeks ago I started getting a semi-green screen when I full screen videos on youtube.