hm exception list should work...
had this buffer overflow warning yesterday, as my machine had to do a lots of things simultaneously, but was able to let the program run w/o problems...
While playing mp over wz I also had some problems with the stealthed ports in comodo. You might try to take a look in this direction... (just when you play mp ofc)
if nothing helps write a mail to comodo and characterize your problem to them. Some ppl I know did this because of modding reasons because suddenly many av's detected something (mostly useless heuristic stuff).
All AV- companies (about 10) finally took the files onto their exception lists. Didn't took 3 days.
but buffer overflow might point in another direction, too. simply lag. happens often on elder windows installations and single core machines.
If nothing helps just pull the plug and shut down comodo
