Audio stuttering when editing captions

It's becoming very convoluted and frustrating.  I'm at USC, and so our Sophos is centrally controlled.  I don't have any power (nor do my IT people) in being able to turn off services.  I'm going to put in a request to USC IT for excluding the folder list that John gave me, but I have no idea if they will honor my request.  In any case, it's already taken way too long, and I'm going to be continuing to lose time doing actual work. 

None of this happened until we started doing the captioning.  There didn't seem to be any problems before that, although I'm late in the game coming to 360.  We used Storyline 2 forever.  But the feature I was very excited about now is turning out to be a problem.  Disappointed.  Programs that use a lot more resources, like Adobe Premiere for example, have no problem running on my machine.