I'm working on a virtual machine (vmware) with a Fedora 18 and something really weird happened there, that I can't solve.I use to switch from the virtual to my normal OS (Windows) using Alt+Tab. What happened is that I was on the fedora and pressed Alt+Tab to switch as normally but then everything I had open (QtCreator, eclipse, some directories/folders, some xml files...) disappeared and I was seeing the desktop... and moreover all the icons on my desktop were gone, so I was seeing a blue background and nothing else.I know that my applications were not killed because I clicked to switch off the virtual machine and (as I were programming with Qt and were some changes not saved yet) so the QtCreator window appeared and asked me to save changes. (I've restarted the  virtual machine ofc and The Os is still 'broken' so that's why I suppose it's a Fedora's issue and why I pot this here).The thing is that I couldn't find the other open programs and files I had using Alt+Tab. I've searched on internet about that but didn't found the reason or the solution. So.. any idea of how can I restore my Fedora to have again the desktop-icons and the normal behaviour?
Missing icons of desktop
fedora;vmware;desktop