Well I eventually found the thread after viewing 1000s of threads that just said "do a search". Seriously, saying "do a search" does more harm than good as it effectively creates false positives in the search index. I might not be a mechanic, but I do have a BSc in IT!
Anyway, for those who later stumble upon my thread looking for answers:
http://www.landyzone.co.uk/lz/f9/window-mechanism-40092.html
Not fun![]()