Just to make things a bit clearer, the "offset" is not based upon GMT but on the actual server time which is displayed just above the offset field so as to make it easy to figure out which offset is needed.
See the screenshot below which hopefully will make the old "light" go on.
![[Linked Image]](http://www.the-highway.com/pilgrim/pil_sig2.gif)
![[Linked Image]](http://www.the-highway.com/Smileys/pencil.gif)
