THIS IS NOT AN IE11 problem! Just thought I start with that disclaimer. I have a user running Pro/E WF5.0 M150 connected to Windchill 9.1 m060. Running fine until yesterday. He can start and run Pro/E but as soon as he clicks on any links to our Windchill server Pro/E disappears. He is running IE10 and we have tried, removing the local cache, reinstalling Pro/E, resetting the IE explorer back to defaults.....I'm out of ideas. I can display other web sites in the embedded browser, such as ptc.com, but as soon as we attempt to connect to our local Windchill server.....Pro/E shuts down.