Mutt hangs when composing

[Tom <tom@abwaerts.be>]

Hey,

I don't know if this problem is known at all. I'm not even sure what the 
problem really is. While we're at it, I also don't know if someone else 
already complained about it on the list (can't seem to find anything in 
the archives though).

Since I woke up this morning, Mutt hangs time and again as soon as I hit 
<enter> after stating a subject for mail. Basically, I can read e-mail, 
but that's about it. I can enter the recipient's address when composing 
mail, and I can hit 'r' to reply to mail I received, but as soon as I 
try to get to vim, it just hangs.

I've tried my best to find anything like this in the archives, but to no 
avail. So I just wondered: does anybody experience the same behaviour? 
How do I find out what the problem really is?

Greets,
Tom