i've used 98 SE on one computer (my dads) for 3 years now, and i've never had one freeze, one error AT ALL (occasionally programs screw up, but NEVER the OS)
i guess if you use it to render or osmething, but just general use, like checking email, surfing the internet, etc.
Let's get back on-topic.
Starfury: Does the computer restart at the same place every time (i.e. when it's about to load the OS) or randomly. For example, if you're not sure, try pressing DEL to go to the 'setup' screen, and just leave it. if it resets there, then it's probably motherboard, if it doesn't, then it might be a file it's loading (with the OS) or something else that's causing it to reset, it's very possible.
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