Sorry - Didn't expect this to be controversial. Just thought it was a quick procedural thing. Hitting Enter seemed to address it for the most part. I'm new to Premiere in last few months after working on transitioning from years of Vegas use (Vegas Pro 12 most recently).
I always had problems with Vegas hanging a bit during play so wasn't all that surprised. I'm using an avi file, 29.97fps, no RAID. My storage is a combination of internal SATA drives and externals, however this project is on an internal. I have a radeon 6900 (I believe) with 2GB RAM. System has an I7, 36GB RAM.
Eric