I've just started a new game and something weird happend, wich has never happned before. When my cell was opened (or Jaheira's) a message wich said: "It's time to kick someone's butt." or something like that. What would be the cause of this?
I am fully patched.

Your dialogue.tlk is probably messed up. replace it and then re-install your patches and mods.

Did it mess up the game? If not it could be a modders joke... if you have any mods installed of course.

Could it not simply be Minsc, having alittle dialog fun?

--Kestrel--

Honestly, Xen, is this worth making a topic for? When someone says "please help me with a problem" I (but that could, of course, be me) would expect a serious problem and not something trivial like the thing you mentioned.

Well, if he ddn't make a topic he would either have to post it on someone-elses unrelated one or never post it a still have the problem.

The problem is indeed a messed-up DIALOG.TLK file, resulting in the game saying some lines when it should be saying others. The words that were supposed to appear are "The door becomes magically stuck open," because you're playing with the Improved Ilyich component of Tactics installed.