The Rockbox utility freezes at startup for me. I run it as root, it opens, shows the dialog "This is a new installaiton of Rockbox... The configuration dialog will now open..." . I click OK, then nothing opens. Soon the program window darkens and stops responding. I close it and see the attached dialog.
My specs:
RockboxUtility-v1.2.12-64bit
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric
$ uname -a
Linux pleco 3.0.0-16-generic #28-Ubuntu SMP Fri Jan 27 17:44:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux