I am new to the Vassal environment and am struggling to load modules. I have loaded the Vassal program and taken the tour. I have also downloaded some modules (e.g., Crusader Rex), but cannot access them. I am using an iMac running Mac OS 10.4.11. The file folder on my desktop for Crusader Rex contains: buildFile and info files, an images folder, and the cusader_start.html. When I try to use the PlayModule button on the Vassal engine and then select the start file I get the following error message: ZipException:error in opening zip file. I am pretty sure I may have missed as step along the way, but I’ll be darned if I can figure out what it would be. Any help would be appreciated. Thanks.