I've been following this thread for a while, as I am experiencing the same ghosting problems trying to play video in xbmc. I think I've tried the recommended fix with no luck so far:
Clean Ubuntu 8.04 x86 install, all updates
ATI Catalyst 8.6 per EnvyNG
XBMC SVN 14921 per PPA (compiled Aug 15 08)
Added file advancedsettings.xml to usr/share/xbmc/userdata with the following text:
<advancedsettings>
<glrectanglehack>yes</glrectanglehack>
</advancedsettings>
(also tried with '1' instead of 'yes' in advancedsettings.xml file)
Is there something that I need to do with the advancedsettings file or will XBMC automatically look for it?
Using MSI K9AGM2-FIH 690G motherboard, AMD X2 4800+, 2GB RAM
Debug log here:
http://pastebin.ca/1176359
Any suggestions?
Thanks!