I recently got a new laptop running windows 7 Ultimate 64 bit. for a while I had no problems, but suddenly, and seemingly without warning, the window key+arrows shortcuts for maximizing and moving windows has stopped working. all other shortcuts I use often seem to work fine, its just those ones. the window key by itself opens the start menu just fine.
I have searched through the site for other questions on this topic and none have proven helpful. this is why I am asking again.