toshiba sattelite m45-s169 +1gig ram

last week it locked up and i had to do a hard reset, remove battery and unplug power cable
loaded up to a black screen, sat there for a while, finally got back into windows, slow as balls, locked back up, repeats as above

reformat, update to xp sp3, update all other basic crap
slow as balls, freezes after about 15 minutes

now it sits at a black screen for a few hours, sometimes power cycles randomly and sometimes gives me a windows logo and then resets

currently:
from off
turn on, power light turns on, battery light turns on, power cable light turns on, processor light remains off, wifi light remains off
sits for a few hours, no harddrive spinup, processor fan does turn on

after a few hours the processor light comes on, hard drive spins, and wifi turns on
sits at black screen for a while, sometimes resets, sometimes tries to load windows, sometimes gets into windows then freezes

its been sitting with all its lights on and a black screen all day today and nothing so far

i have gotten a few cmos errors on bootup but they occured after a hard reset so im not sure its related at all really

thats about it, i dont know shit about hardware issues so im stuck here
h: