Freezing poss gforce

[kevin shepherd]

I need help as I've tried everything

XP pro
epox 8kta+ mboard
AMD 1200 duron (An ageing PC not ready for upgrade)
Nvidia gforce 4 MX420
Sblaster 64
327 mb 133ram
home network netgear wireless router adsl with FA311
router card

Problem is constant system freezing. having to reset to
get going. Using all latest drivers inc direct x 9b and
bios. Changed IDE cables.

When trying to set the screen saver to 3d text and
previewing freezes up. Please help someone.

Many thanks

Kevin (UK)