I have a strange problem here, lately I have noticed that my computer just switches off when in use and reboots. From what I can remember it seems to do it when the modem is connected to the Internet.

I purchased the computer about 1 month ago and this 'switch off/reboot' problem has started happening in the last 2 weeks.

The system is an AMDK6-2 400, 64mb RAM, running Win98SE.

Any guesses?