I have the same issue with every game I try to join,but I have no mods installed.
Originally Posted by popcorn2008
If you have the regular version the only folders should be Text and Audio. If you have the collector's version with the bonus maps installed you may also have an Art folder.
EDIT: Forgot to mention!
Make sure you have the lastest patches installed
. Latest is 1.02
How do I install patches? I have the CD version.