What should i do its caught in a loop and can't get to my desktop everything and evertime i do this i see this

I was in the middle of another issue on the phone with dell support and i thought i messed up having it restart and so i held the button as soon as it restarted and it was at the dell logo screen now its in this loop. any help

boot XP in safe mode, or boot of your XP CD. run CHDSK on your CD drive. Your registry is probably corrupt.
Then once you can boot, run Crap Cleaner (CCleaner) frequently and use it's regsitry repair tools.

also: learn how to read minidumps: http://www.techspot.com/vb/topic31341.html

Do not rule out bad ram. Run memtest 86+ from a floppy or CD for at least 7 passes.

i have tried save boot many times i will try chdsk i think maybe i don't have enough ram not sure if this doesn't work im gonna get another xp version since ive only had this problem on this dell media center edtion