Those errors are just keybinding conflicts, you can prolly fix them in Window > Preferences > General > Keys. The bigger problem - missing the Seam perspective - ... not sure. I just installed JBT from the development/ site on top of the Eclipse 3.4.2 base platform, and it works great. https://jira.jboss.org/jira/browse/JBIDE-3558?focusedCommentId=12455264#a... This may be a Windows problem, as I'm using Linux here. What JVM are you using? You need 5.0+. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4214722#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...