eOn error - assertion failure

I got this error on my Athlon XP3000+ WinXP Home SP2:

http://img272.echo.cx/my.php?image=eonerror1tt.png

Same here on Linux
[FIDA] Connecting to Server
[FIDA] Processing Assignment

Dimer DoAssignment
include/tnt/vec.h:206: T &TNT::Vector<T>::operator[] (long int) [with T = int]: Assertion `i<n_' failed.
Aborted

(only without the silly smiley naturally)

Ni!
Fang