[sime]

Say your here:
http://www.mozilla.org/why/
You have tabs running and the favico thingi is visible (dino's small head).
The code for that page is:
<link REL="icon" HREF="../images/mozilla-16.png" TYPE="image/png">
I tried saving mozilla-16.png locally to mess around with...i applied 
the code like this:
<link REL="icon" HREF="mozilla-16.png" TYPE="image/png">
Yes dino comes up, but he has a white background, i.e. it isnt 
transparent with the current mozilla theme (and thats how it is with any 
mozilla.org site)

so i try this (locally):
<link REL="icon" HREF="http://www.mozilla.org/images/mozilla-16.png"; 
TYPE="image/png">
its works

*mini brain storm*
... is it because of server mime types and the lot? i.e. ` TYPE="image/png"
Or is it something else server specific?

-sime