Originally Posted by Christian and Beccy
I have just used Irfanview to save the file as a proper Windows Icon file and it still doesn't fooking work!!

not a Windows icon file

people do own Mac's, Linux Boxes and other things
Its must be a normal ico and not a microsoft flavor which has the possibility of increased colour depth
try this online generator to create the file you require...
http://www.graphicsguru.com/favicon.php