windows xp freezes on welcome screen

ok well heres the story

IBM Thinkpad R31
Windows XP Professional
1.06GHz processor
6xxMB somthing ram
NBHD 60G|TOSH 5K 8M ATA6 MK6034GAX - OEM ( <---just installed that not too long ago)

well i did just install a new HDD and i noticed that the drive was getting very hot, actually it was just on the line of max operating temp, but its still under warranty so i didnt think much of it.

but to day when i try to boot it up the thing just freezes on the welcome screen or after i type in my user name and pass sense i use the classic login. yea i thought i killed the drive too at first but the thing is it will still boot in to safe mode and run fine so i ran avg anti-virus and avg-anti spyware (both free versions) and they found nothing.

i looked in my startup and it just the basic drivers in there. so im almost sure it is some kind of malware, but i maybe (and usually am) wrong.

whats the next step?

 

nvm i got it to work some how. not sure what i did lol

 

Run check disk asap.

If you need help with this post again.

Studio T