I think this is the relevant info from the log
17:11:32 T:3000 M:2941681664 NOTICE: -->Python Interpreter Initialized<--
17:11:32 T:3000 M:2941677568 DEBUG: XBPyThread:
rocess - The source file to load is C:\Users\HTPC\AppData\Roaming\XBMC\userdata\autoexec.py
17:11:32 T:3000 M:2941669376 DEBUG: XBPyThread:
rocess - Setting the Python path to C:\Users\HTPC\AppData\Roaming\XBMC\userdata;C:\Users\HTPC\AppData\Roaming\XBMC\addons\script.module.simplejson\lib;C:\Users\HTPC\AppData\Roaming\XBMC\addons\script.module.beautifulsoup\lib;C:\Program Files (x86)\XBMC\addons\script.module.pil\lib;C:\Users\HTPC\AppData\Roaming\XBMC\addons\script.module.elementtree\lib;C:\Program Files (x86)\XBMC\addons\script.module.pysqlite\lib;special://xbmc/system/python/DLLs;special://xbmc/system/python/Lib;special://xbmcbin/system/python/python24.zip;special://xbmc/system/python\DLLs;special://xbmc/system/python\lib;special://xbmc/system/python\lib\plat-win;special://xbmc/system/python\lib\lib-tk;C:\Program Files (x86)\XBMC
17:11:32 T:3000 M:2941669376 DEBUG: XBPyThread:
rocess - Entering source directory C:\Users\HTPC\AppData\Roaming\XBMC\userdata
17:11:32 T:3000 M:2941534208 INFO: -->Python script returned the following error<--
17:11:32 T:3000 M:2941534208 ERROR: Error Type: exceptions.AttributeError
17:11:32 T:3000 M:2941534208 ERROR: Error Contents: 'module' object has no attribute 'execbuiltin'
17:11:32 T:2176 M:2941493248 DEBUG: CApplication::ExecuteXBMCAction : Translating SetFocus(9000)
17:11:32 T:2176 M:2941493248 DEBUG: CApplication::ExecuteXBMCAction : To SetFocus(9000)
17:11:32 T:1896 M:2941886464 NOTICE: ### TV-Show Next-Aired starting ...
17:11:32 T:1896 M:2941886464 NOTICE: ### author: Ppic, Frost
17:11:32 T:1896 M:2941886464 NOTICE: ### URL:
http://code.google.com/p/passion-xbmc/
17:11:32 T:1896 M:2941886464 NOTICE: ### credits: Team Passion-XBMC,
http://passion-xbmc.org/
17:11:32 T:1896 M:2941886464 NOTICE: ### date: 17-10-2010
17:11:32 T:1896 M:2941886464 NOTICE: ### version: 2.1.2
17:11:32 T:1896 M:2933370880 NOTICE: {'silent': 'True'}