hi

Last few weeks my pc started freezing up, randomly but usually in 1st 20 mins or so of pc being switched on ( but does happen less frequently at any stage )

pc spec

athlon 900
512mb ram
40 gb hd
tnt2 32mb graphic card

broadband modem last 4 months

tiny system about 3 years old nearly

wondered whether its overheating ( would this happen 1st few mins or after a while ? )

video card maybe

i just dont really know

any help appreciated

thanx in advance