There is something wrong with the way preview works. If I change my map to show 
anything other 400 x 300 - the pixel<->coordinate translation gets severely 
mucked up.   If I select an area to zoom to, it doesn't do it properly, zooming 
in somewhere else on the map.  I happened to be changing projection settings 
around the same time I changed the map size, so it took me a while to realize 
that my projections were NOT the problem. :)

The problem is most pronounced when both width and height are different than 
the default, since minor changes in one or the other may not be that noticeable 
to the user.

I thought it might be an issue of aspect ratio, but even keeping the ratio the 
same creates the same problem.

All my tests were in IE 6 - can other confirm this as a bug?
If so, I assume maplab should just ignore the map size setting altogether  OR 
scale the preview map to fit the map size.