I tried Lucas Vieites (thanks) suggestion and the problem was no more.
Next time i'll remember trying it out :).

So I investigated a little more and found the culprit, a lonely argument (see screenshoot pls).
Don't know how it got there alone...

@Frank, I tried to find Lex's email about the build menu entries but had no luck.
 As a side discovery Lex writes very long emails :p

Kind Regards
André