Dr Watson Reports

With limited RAM at present (64MB's), I'm working hard to keep up with a
selection of fault messages and reboots, and in the last few days, Dr Watson
is reporting:-

"Windows User-interface core component attempted to access memory that does
not exist.

Module Name: user.exe
Description: Windows User-interface core component
Version: 4.10.1998
Product: Microsoft(R) Windows(R) Operating System
Manufacturer: Microsoft Corporation

Application Name: Iexplore.exe
Description: Internet Explorer
Version: 6.00.2800.1106
Product: Microsoft® Windows® Operating System
Manufacturer: Microsoft Corporation"

This is mainly with IE but other programmes also bring up same fault.
Two points, the IE vers. is shown as 5.6.0.2800 as well as 6.00.2800 (as
above) - is it an IE5 or 6? and is the fact that the 'user.exe' (dated
4.10.98.) is in need of an update?

Would appreciate any help!
Thanks
--
Dougair