Apps/programs not showing in taskbar running apps drop down

[amongunz]

I apologize if this post alreasy exist.. Please point me to it.. I have used the touch pro since it came out and I can't understand why I am having such an issue with this... Any advice..

Few details. Nothing will stay open.. If I open the calculator, type something in andd hit the "x" button to go to another app, when I click the drop down, the calculator is gone..


Many other programs do the same thing.

Very annoyed.