Finder Window moves around screen

After the Software Updates from Apple yesterday, my finder window is larger than the screen. It seems to float and moves around. When you move the cursor the menu bar moves up/down/left/right. The overall finder window is a bit larger.
These changes started after the Software update yesterday. One was security and I'm not sure what the other was. I do all the suggested updates when they come.
Any ideas????? I've tried about everything I could think of.