Deron, I found a buggie.
If you edit an already existed ilus, there are two ways to replace,
export, this ilus.
1. Save as and then seek in the list and click on the one. This goes
well. It asks: Replace?
2. Save as and put the first character, and maybe another character in
the filename. Click now on the rigth one.
Normally it asks: replace?. But now it doesn't. It puts an extra
.ILU after the existed name.
So Deron.ilus becomes Deron.ilus.ILU.
(And no: it doesn't become subsequently Deron.ilus.ILU.ILU)

Theo