Since yesterday, whenever I open a program from the desktop, my screen turns blue and I no longer have access to my desktop (all icons disappear). In order to have access to my desktop, I have to click in the taskbar on «show desktop», which is unpleasant to say the least. That same day, I also installed a new driver for the printer I had. However, I deleted the program from my control panel, thinking this would resolve the problem that started shortly after its installation... but to no avail. Anyone knows what might be the problem, and how to fix this? Thanks.