screen freezes

[bram]

i wonder if any one can help me as i am my wits end with this computer

1) screen freezes when using microsoft games eg sims zoo tycoon

2) computer sometimes shuts down and restarts again for no apparent reason

3) i receive internet explorer error

i am using windows xp home with service pack 2
mcafee internet suite
and i have just inserted a new graphics card and the problems still occur

help me please

bram

 

[The_Other_One]

Besides the IE problem(which it's buggy to begin with) your probablems sound to be powersupply related.