I've upgraded to 5.8.0 and now it works, no changes in the code. GRRRRR. I hate it when a tool I use is broken, especially software tools - like looking for non-existant bugs in code (or even worse looking for non-existant bugs in other people's code)! AAAAARGHHH. Thanx for all your advice though - my new version is a lot neater. :) fred