Pure Music Memory Play question

Hi all, hoping someone can help me out here. I'm having a problem getting memory play to work on my mac mini. Specifically, I can't get the first track of a play list to play from memory play mode. From the 2nd track on, it works fine but the first track always says "playing from disk". When I click on the memory play button when the first track is highlighted I keep getting a message saying "memory play will begin with the next track"

Any ideas?
Thanks in advance.
Jerico - I think you hit the nail on the head! I listen to a lot of big scale classical and many of the 1st tracks are 1st movements of symphonies which are anywhere from 10-20 minutes long. I just went through my library and tried some shorter 1st tracks and no problem. Thanks!!

I guess I will be needing some more RAM.
Does it always happen like this, regardless of what the first file you play is?

This happened to me at times, but it was a memory issue for me - PM will default to disk playback if the file you playing is too large to fit in the memory cache.
call the company direct...the software designer wants feedback like this and can probably pose a solution. I'm a fan of PM.