Windows XP locks up

[MiMi]

I can't fix your problem but, I am searching now for the
solution to that exact problem myself. If you should find
a solution I would really like for you to e-mail
me ...please. Thank you in advance!
>-----Original Message-----
>My windows xp locks up and I cannot figure out why.
>Happens just about anytime, running an application,
>surfing the web, immediately after booting up and there
>seems to be no clear pattern. My machine has been virus
>scanned, I've replaced the fan on my CPU, added
>additional RAM, defragged and scan disked, reformatted
my
>hard drive, reinsalled a clean copy of windows,
>uninstalled all peripherals and network/dial-up
>connections, uninstalled all unnecessary software and my
>PC technician has checked it twice with no hardware
>issues found. Can anybody tell me why my machine locks
>up? When I say lock up it means that everything on the
>screen freezes, my keyboard and mouse are diabled, and
>all I can do it reboot my machine. My machine has a
>900mhz processor with 512 RAM, and I run a DSL broadband
>connection.
>
>Thanks!
>.
>