AIM keeps crashing on my iMac...

I wasnt sure where to put this but on my iMac AIM keeps unexpectingly crashing... this is pretty bad for me seeing as in I just formed a band and am missing important messages from people becuase I wont even know who sent it to me when the second it pops up AIM crashes. I could be doing the simplist thing as typing a message or looking at a profile or doing nothing when it happens. I saw nothing on the AIM site that could help.... does anyone know what I can do?