Bad request

Hi,

When trying to load IE, I get the following message :

Bad Request
Your browser sent a request that this server could not
understand.
Request header field is missing colon separator.
)
This is the mesaage I get. Also, from system
information report - it says that iecont.dll and
iecontlc.dll is missing - but I can't find those files
on a working IE program . Also, my auto update doesn't
work. Can access web via firefox but any program that
needs IE doesn't connect or work.

Scanned with a new copy Norton AV - etc.

I also noticed that I cannot receive automatic updates for microsoft xp (2).

Has anyone had this issue ?

Help please ???

thanks,

chris