I’m on the most up to date version.
I think I’ve solved it.
After trying everything in Cs3 and getting the same glitch, I ruled out the program as the cause (and thus, all the different setting I tried) and focused on my source files.
I converted them to another format, manually set the frame rate at 29.97 (as opposed to 30) and voila! I’ve successfully exported the video edit, glitch free.
I still don’t understand why Premiere doesn’t set it all up to work with regard to framerates and such.
So, now after about 35 hours of frustration, I’m ready to get on some editing.
I hope.