I installed Ubuntu 11.04 yesterday using the Wubi installer and I've noticed that a few of my programs will disappear when I minimize them. For example, I can't minimize Eclipse because it will disappear and I won't be able the load a 2nd one because the 1st is using my workspace (if you're familiar with Eclipse you know that you can't use the same workplace twice as the same time). I also just noticed that if I minimize a terminal then it will disappear as well.
Does anyone have any idea why this is happening and what, if anything, I can do to prevent it?