Mavericks and Outlook Issue – Window Moves Left

Since updating to OS X Mavericks, outlook is acting strange. Emails are being sent and received without issue, but the outlook windows (main, composing, reading, etc.) all resize and move left on the screen so that the entire left-side of the viewing window cannot be seen. If I click and drag the window to the right it immediately resets to the left. The only way to fix this is to quit outlook and reopen, but the fix is temporary as it reverts to its bad behavior within an hour or so (I haven't been able to recreate any specific actions). Oh, and the X - + from the upper-left of the window disappears.