Mailmerge crash (and I have to send out a mailing tomorrow!!!!)

Hello everybody!

(I'm not quite sure if this is the right mailing list for my issue. But
I think, since mail-merge is somehow related to base ...  ;-) )

I've been working with OO 3.1.0.6 for quite a long time now. Since this
problem hit me this evening, I upgraded to 3.1.1.1. But got the same
crash...

As always, I created a .odt document containing form letter fields. (I
did many many mailings in the past). Printing to paper works. I tried
that with 2 or 3 recipients. But sending as email crashes.
If you want to send a form letter as email, you have to use the
Assistant. (Simply pressing Ctrl-P doesn't work because "as e-mail"
doesn't exist there. BTW why ???????)
I sucessfully got through all the steps of the form-letter assistant
dialog. But when I press the "Send" button in the last step, all windows
disappear and the document-recreation dialog pops up. No error mesage.
Nothing....

This is even more a big problem to me now, because a have to send out a
mailing by tomorrow!!!

Any ideas what I could do?

Norbert