Try reseating your video and memory cards. Run a check on your memory,
although the memory check programs do not always correctly identify memory
problems. Try disconnecting a device that takes power from the PS and see
if it makes a difference. If you have upgraded with new internal hardware
it might be the PS. Download adaware from lavasoft and see if spyware is
present, but it is liklier hardware. Powering down should be OK since you
already have a problem and you might as well find out what it is.

"Gauthier" wrote in message
...
I have a Pentium 4 computer running win xp home and when I power up my
computer it will go thru the power up and then start all over again (
sometimes 10 times ). I am afraid to power my machine off in case it won't
start up next time.I have a high speed cable internet provider and half
the
time I loose my settings to log onto the internet. I also have Norton
Antivirus. This started about 3 weeks ago. Once the p.c is up and running
I
am o.k
could this be a trojan or virus or my power supply?

Any suggestions?

Tim.