My problem is that I have a nice interface saved in one directory, which
doesn't compile, and an example saved in another directory, which
compiles but doesn't look like I want it to look.

So I was trying to copy paste modifications from the nice interface to the
one which compiles, little by little, to track down the cause of the compiler
error (request for member `show' in `w', which is of non-aggregate type
`MainForm*').

But I'll try tomorrow to make changes in the designer, OK (it's ten past
eleven PM in France and I've been fighting the thing since midday)...

Thank you

Mariane