Well I've spent all day studying it, trying to find a cure.
It's name is 'Internet Explorer v5.01 minus a bit'
Commonly found when you engage in 'Cancel' when wadering the plains of 'Microsoft.com'
Symtoms include the horifying Blue plaugue, with random loss of reading and writing ability. Late stage include complete loss of memory functions and data loss.
Only known cure is to advoid engaing in Cancel (or to reinstall it).