This message was posted on behalf of Intel Corporation
I understand you are having problems finding tiles and also that the screen seem to be stretched.
Regarding this, what I could recommend you to do is to first open the "Graphics Properties" by right-clicking on the desktop and selecting "Graphics Properties". Once this is open, please press and hold "Ctrl" + "Alt" + "F8", after this it will take the graphics settings back to default and everything should go back to normal.
* Note: If you have any dual-monitor configuration active it will take it back to default and it must be re-setup again.