Hi, We have some smoke tests in Moose that basically spawn a UI and check for Error. This used to work when running headless in Pharo 1.2 but now they fail in Pharo 1.3. I believe this has to do with the new changes in the UI Manager, but I do not know what to do. To reproduce the problem, you can simply call a Pharo-1.3.image in headless mode and file in the attached st file that: - installs a simple test: HeadlessTest>>testStartup self shouldnt: [1 inspect] raise: Error - loads HudsonTools - runs the test and outputs the XML file report - although the test should pass, it raises the error: HeadlessStartupTest(TestCase)>>signalFailure: HeadlessStartupTest(TestCase)>>assert: HeadlessStartupTest(TestCase)>>shouldnt:raise: HeadlessStartupTest>>testStartup HeadlessStartupTest(TestCase)>>performTest Can anyone help? Cheers, Doru -- www.tudorgirba.com "What is more important: To be happy, or to make happy?"