I have an Acer Aspire 7740-5691 laptop. I somehow inadvertently hit a sequence of keys, which made the screen jump from the normal landscape format to a "vertical" one. I don't know the magical keying sequence to flip it back. My options are to lie on my side forever or to be bailed out by instructions from someone with actual brains. Help1
My work laptop rotates the screen if I press alt+ctrl+arrow key. Give that a shot.
Hey thank you so much for posting this answer. I had picked up my laptop in the dark last night to move it to a safer place and I inadvertantly rotated the screen. This morning when I saw it I panicked. Fornutately your solution worked perfectly on my dell inpiron mini laptop. Thanks again.