Play 1 then need to relaunch for song2?

[DetroitT]

PT10HD (30 day Demo)
I load up a song and all is well.
Close session.
Open song 2 and get no PB.
Re importing I/O does nothing so....
Close & Quit Pro Tools, relaunch PT's and now I get playback.

I also tried unchecking DSP cache, pure in system usage window.

Unique to demo or have others seen this?
Thank you.

MP 12 core, 12 gb (6Gb for cache) OS 10.7.2
Blue 192, HD3a in Magma chassis.

[ronwasserman]

http://duc.avid.com/showthread.php?t=311045

[DetroitT]

Thanks Ron. I knew I'd read that thread prior to getting the HD demo.
On my laptop and have been using 32 bit sessions. That system has not shown this issue.

Seems working in 24 bit creates this issue.
(?)
Changing to 32 float is working now.
(Opening more than one session w/o restarting App.)

Thanks.