I am currently running Creo/Elempents Pro 5.0 on a late 2011 Macbook Pro as my Uni stilll uses Wildfire 5.0. I am using Windows 7 through parallels desktop. 80% of the time this works perfectly. but i have a recurring problem. Whenever I close the lid on my macbook, and login again whilst modelling, the model area turns completely black. This also occasionally occurrs when collapsing the window to the task bar.