System Info:  Dell, Optiplex GX 620, Vista

Note:  Found by AutoTestsSystem.  Already confirmed manually.
Note 2:  This is on Vista, with this particular 7.2 build.  Not on XP, not 7.3, not yesterday's 7.2.

Steps to Reproduce:
1.  Ghost the system to a clean Vista.
2.  Download and install SqueezeCenter-7.2-22286.exe.
3.  Put one track on the playlist.
4.  Go to telnet and run "[MacAddress] play".
5.  Clear the PlayList, then put another track onto it.
6.  "[MacAddress] play" again.
7.  Try these steps on 30 or 40 tracks.
7.  Notice the tracks do not always play.  It is inconsistent.  However, once one of them start playing, a whole bunch of them will play.  Sometimes, none of them would play.
8.  Ghost the system clean again, and install today's 7.3 build(22284) on it.
9.  Try the same tracks and same telnet command.
10.  Notice they consistently work.
11.  Try the same 7.2 build on XP.  The tracks and telnet command work.
12.  Try yesterday's 7.2 build on the same Vista system.  The tracks work consistently.
13.  Therefore, it is this particular build (7.2, 22286) on Vista that has the problem.