Hi, AMHolland!

Welcome to NeuroTalk!
I have MS too and have only heard of a few cases of siezures with it. Whether it's due to Avonex, or the MS is anyone's guess, so I'll leave the guessing to the docs.
We have a great bunch of MSrs in our forum here:
http://neurotalk.psychcentral.com/forumdisplay.php?f=17
Come on over and hang with us in the MS forum, we take our disease very, very seriously (sort of).