Remote Procedure Call

Hello there,

Hope somebody can help me. I am using XP Home Edition on
my laptop.

I an quite technically inept, and hope someone has some
suggestions that can assist me.

I access the net from two countries - England & Brazil. I
have no problem with internet access in England. However,
when I am on the internet in Brazil, nearly every time I
get a message stating "Windows has received a Remote
Procedure Call (RPC) and will have to restart windows.
Please save all the information. This procedure has been
activated by NT Authority\system.

The computer then shutsdown and re-activates itself,
however, any information not saved has been lost.

How can I stop this happening?

Any suggestions and help would be appreciated.

Many thanks, Paul