Logitech Wireless Keyboard and mouse

I have a Wireless Logitech Keyboard and mouse, the problem is that it keeps
on locking up, I have just installed Windows XP Pro and SP1 with all the
service packs.

I am running:-

Abit IS7
512mb DDR 400 RAM
Intel 2.6 Ghz P4 800FSB Processor
Radeon 9500
Maxtor 80GB SATA Hard Drive

with nothing on the PCI slots

I have had the dreaded blue screen twice with a message referring to
somthing .sys, which it sounds to me like it could be the Keyboard and
mouse.
I am going to start and do some back tracking and remove all my USB devices
and keyboard and mouse to be replaced by a wired one.