San3L,
The following steps fixed this problem for me:
1. Go to Control Panel
2. Click on Ease of Access link or Ease of Access Center icon.
3. Select Change how your mouse works or Make the mouse easier to useoption.
4. Tick the check box for Prevent Windows from being automatically arranged when moved to the edge of the screen with the mouse under Make it easier to manage windows section.
McKnife,
I tried installing the previous version of RDP client, but the install failed. I can't recall the exact error, and I'm not certain it couldn't be made to work. Since I had already solved my problem by implementing the steps above, I only tried the different RDP client in the interest of testing your theory.... but I when it didn't work right away, I put it aside for another time. Thanks for the suggestion.
Thanks all for the assistance.