[galaxy-user] Workflows not saving

Dear list, I have a problem saving workflows, every time I click the save button, the dialog saying "Saving..." comes up but never disappears. I can't click on anything, bu have to reload the page. When I then check the workflow, nothing is saved. This happenes to me using Firefox3@Fedora10, Firefox3.5@MacOsX10.5 and Safari@MacOsX10.5, both on the public Galaxy and on our local copy. Has anyone else seen this? Thanks Daniel