Just noticed a post on a thread above which might interest you (full post follows):
"8. Re: No subject Feb 18, 21:48 email@example.com
if u want to play the demo just do this!!!!!!!!!!!
1- UNINSTALL Gamespy arcade ( it's crap anyways )
2- UNINSTALL Renegade ( do custom uninstall, check everything )
3- DOWNLOAD Regcleaner(http://www.vtoy.fi/jv16/shtml/regcleaner.shtml)
and SEARCH for RENEGADE and DELETE all Instances. ( It should find 2 )
4- Install ALL SEEING EYE ( http://www.udpsoft.com/eye/
5- REINSTALL Renegade ( DO NOT install Gamespy )
6- Open All Seeing Eye and find the 1.5 server option after refreshing list. "
I haven't tried it, but for those of you who do not like Gamespy Arcade, it might be worth a try. If it fails I suppose you can always install Gamespy Arcade afterwards.
*edit* I have not used All Seeing Eye myself, so God only knows (or maybe some of you do) if it is better than Gamespy Arcade.This comment was edited on Feb 18, 22:14.