Testing procedure:
1. Reboot, wait for the N900 to settle down
2. Place 0-openmediaplayer-5a5e8fe in /usr/bin
3. Launch OMP from desktop icon
4. Bug is gone, OMP starts without locked GUI
5. Delete working binary from /usr/bin
6. Reboot, wait for the N900 to settle down
7. Place 12-openmediaplayer-047bf2b in /usr/bin
8. Launch OMP from desktop icon
9. Bug is here, OMP GUI locked until number of the files appears
10. Delete affected binary from /usr/bin
11. Reboot, wait for the N900 to settle down

Points 7 to 10 were repeated with 6-openmediaplayer-bf969d5; 3-openmediaplayer-8ace8e5 and 2-openmediaplayer-afd396a: all of them produced the same results as 12-openmediaplayer-047bf2b, bug is here.

12. Place 1-openmediaplayer-99fa336 in /usr/bin
13. Bug is gone, OMP starts without locked GUI

So between 1-openmediaplayer-99fa336 (which is fine) and 2-openmediaplayer-afd396a (which is not fine) bug was introduced. Hope you can find it.