Apple Logic Pro /LogicExpress Discussion

Hello.  I'm wondering if Logic's loop browser will play 24-bit audio loops?  For me this 
doesn't seem to work.  Here's what I am doing:

1. Open Logic and make sure audio drivers are set to DAE and DTDM (not Core Audio)- to 
work with Pro Tools.
2. Open Loop Browser from Logic''s audio menu.
3. Clicking on a 16-bit audio file icon properly previews the audio loop (ie: the loop is 
audible).
4. Clicking on a 24-bit audio file icon produces no audio preview and no play icon status 
within the loop icon.

I have a number of folders of 16-bit audio loops and 24-bit audio loops which have been 
imported into the Loop Browser, and this problem occurs on all 24-bit loops, and never 
occurs on any 16-bit loops.  I have set both DAE and DTDM to 24-bit record status, and I am 
able to easily play back other 24-bit audio files via the Logic Arrange page; just the Loop 
Browser has this problem.