Windows Screen Refresh

Recently we replaced a user's XP computer with a Win 7 box.  They use HyperTerminal to connect to a fuel pump that is at their facility.  In the past when they were done with the pump they would disconnect the session and then press Alt+F4 to close the application.  Now when they do this HyperTerminal closes but they get a blank white box on the screen that hides a portion of the desktop.  You cannot see anything behind the box on the screen and it doesn't prevent you from working on the machine.  The only way that I have found to make it go away is to log out and then back in again.  Does anyone know the cause of this behavior or a way to resolve the problem?
CITmgmtNetwork AdminAsked:
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CITmgmtConnect With a Mentor Network AdminAuthor Commented:
While at the client site I was able to duplicate the issue - Pressing alt+F4 to close the application and then pressing the enter key.  The white box appeared and I went to task manager as you suggested but there were no entries for HyperTerminal.  However, while talking with the user I asked why they were pressing the enter key and it was to get back to the last program they were using which was minimized to the task bar.  I began to show them that they can use alt+Tab to do the same thing and even get to other programs as well when I saw that the "Dell Backup and Restore" program was running and accessible via alt+Tab.  When I went to that program it brought up the white box.  I went to the system tray and exited the program which closed the white box.  We don't use that program so ultimately I uninstalled that program which made everything work for the user the way it worked prior to upgrading her machine.
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jcimarronConnect With a Mentor Commented:
CITmgmt--
Go into TaskManager .  On the Processes tab can you see what file is causing this?  
Is HyperTerminal still open?  You can close it from TaskManager, but some other process is probably not allowing it to close completely.
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CITmgmtNetwork AdminAuthor Commented:
I will be going to that client today or tomorrow and will see if I can duplicate the issue and take a look if HyperTerminal is closing out.
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jcimarronCommented:
CITmgmt--
Thanks for telling us the solution.
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CITmgmtNetwork AdminAuthor Commented:
With assistance from another member I was able to determine the cause of the problem.  The suggestion from the other member was not the solution but guided me in a direction that led to resolution which is why I accepted their post as a part of the solution as the box getting created was due to a running program just not the one they suggested.
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