About Ubuntu Terminal Full screen when not showing the bottom

Ubuntu has recently been installed on Win7 's computer, which is a dual system. After work, go straight to Ubuntu, reducing the switch between Win7 and VMs. After entering Ubuntu, a strange problem is that when the terminal is full screen, There are always a few lines hidden at the bottom. Clearly the cursor at the bottom, simply can't see, you must move the mouse to the bottom of the screen, they will come out. As you move down, the top lines will not be visible. Not only is the terminal full screen, this is true when the browser is full screen.

Is this a hidden feature of Ubuntu? I've been searching the internet for 3 days and I still haven't found a way. If you are using a browser, it is nothing. But when using VIM, all the commands you enter are displayed at the bottom, and now the full screen is not visible to the commands you have entered. Even have to use the mouse to slide to see. I can't bear it!

Finally found to be the problem of resolution, enter the system settings----------------the problem is solved by changing the 1600x1024 to 1600x900. I would like to send an essay to someone who encounters similar problems later.

About Ubuntu Terminal Full screen when not showing the bottom