The instructions below maybe help you, I used it in a debian squeeze installation:
1-)Disable de options "Used webkit for rendering GWT UI (if available)" that is in: /Windows/Preferences/WindowsBuilder/GWT/ 2-)Close Eclipse ide 3-)Download and install https://docs.google.com/file/d/0B9KWSpNWygKAYW1yeDhBa2xaRlU/edit# 4-)Restar eclipse WUALA!!! PD: if you can't dowload the file fron the above link, try: https://docs.google.com/file/d/0B_19kwXNeuHcZ0tsNjZRMFRvVnc/edit?usp=sharing or https://mega.co.nz/#!6w4UgQYT!VoLne2JjSEQcA8TymwLERind0TEoqrrCbCI3-qdkjoM -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. For more options, visit https://groups.google.com/groups/opt_out.