XBMC Nightly Build Freezing up regularly

Hi guys

not sure on this one, indications are that it could be the AEON Nox causing a problem.

Description of error:
can play a movie or TV etc fine then coming out back to menu and selecting something else causes XBMC to freeze shortly after.

Log attached here https://www.dropbox.com/s/qo2klxozc9goo9...101112.rar
no dump file gets recorded

Thanks in advance
mysticpete

WHS 2011 SP1 (64bit) fully updated, Gigabyte MOBO
AMD Phenom II x6 1090T 3.2Ghz; 8GB DDR3
DVBLogic 4.5.1 (suite, Licensed) (Online)
XBMC 12 Alpha 7 - GIT:20121108-3b7a2ab-master (Online)
DVBLink Pvr Add-on for XBMC v0.0.6 (Enabled)