Rekordbox 1.5.2 Consistently Crashing on Startup

0) Have you read the "READ ME FIRST" thread in its entirety before posting:Yes, I swear it!

1) Operating System: OSX 10.6.8 

2) OS Type: 64bit 32bit?? but I know I'm on a new iMac 12,2 Intel core i5 3.1 GHz

3) Rekordbox version: 1.5.2

4) Using LINK: No

4a) LINK Connection method: I export to a Flash Drive

4b) Using with CDJs: Yes, but not with my computer, only my Flash drive

5) Hard drive / Flash drive / SD card file system: Only when exporting playlists I use a brand new Sony Flashdrive 64gig class B to use on CDJ2000's

5a) Does the device have multiple partitions: Unsure

5b) If it's a flash drive, is it a U3 device: Unsure but I do know it is a MS-DOS (FAT32)

5c) With what utility did you format the device: OSX

6) Have you scanned your files for errors: No

7) Have you scanned your drive for errors: No

8) Is Rekordbox crashing at all: Yes

8a) If crashing, is it resulting in: an error message both

8b) If not crashing, are there any error messages: 

9) Are you able to repeat / reproduce the problem: Yes

9a) If yes, can you do it consistently: Yes

10) Any other notes regarding your setup only:

Provide as much detail of the issue here: I only use AIFF files bought from Beatport. I have been using Rekordbox 1.5.1 for the last few months with no problems. As soon as I installed the upgrade 1.5.2 the system crashed the first time I tried to import a new AIFF file. Since then I have uninstalled Rekordbox entirely from my computer (including all songs, files, data etc) and reinstalled 1.5.2. The program installed fine, asked me to input serial number which worked fine and the program was ready for it's first file import. As soon as i imported a batch of 22 AIFF files and it got through analysing 6 of the tracks when the program crashed. Now every time I open the program it does the same thing (Rekordbox quit unexpectedly) and crashes. At the moment It seems to be stuck on one AIFF track, but It wasn't always this track that crashed the program before. I have been asked by a colleague if my files are DRM protected but I'm not sure how to check. So at this stage I am very frustrated and don't know what to do now...

I NEED YOUR HELP GUYS and eagerly await your response.

Cheers

Tom