I have been using the 32 bit eclipse with Jboss Tools 3.2 so that I avoid any problems with the visual editor. I believe that the version of XulRunner was responsible for the problem. Possibly the problem is only on Windows PCs.
Looking forward to the release of Eclipse Indigo, and JBoss Tools 3.3, has this problem been resolved now ?
For better performance and fewer JVM's on my PC I'd like to switch to a 64 bit Eclipse/Tools.
You shold be able to use JBoss Tools on Wndows x86_64 platforms if you don't need or can live without Visula Editor. Just switch to source tab in JSP/XHTML/HTML editors and everithing should work in source editor even if Visal Editor is not loaded because of xulrunner for windows x86_64 is missing.