Acrobat XI won't recognize scanner

Question

I installed Acrobat XI replacing Acrobat 9 and the program won't recognize my scanner.
Setup: Windows 7 x64, Canon MG6120
All other programs, to include Photoshop, work fine with the scanner. The scanner works in other user profiles (for Acrobat XI) on the computer, but not in my main profile. The scanner is on the list of devices for Acrobat XI, but when asked to scan, the program cannot find the scanner. If I attempt a failed scan, on logout from the user profile I get an error associated with LogTransport2.exe. This error only occurs when Acrobat XI attempts a scan an fails.
I have tried deleting all local app data for Acrobat in the user profile, uninstalled and reinstalled the printer but nothing seems to work. I believe it is a configuration error in the specific user profile, but I cannot find out were the information is stored.
Thanks,

Answer 1

Try logging into your administrative account and see if Adobe Acrobat Pro will communicate with your scanner.
If Adobe Acrobat Pro will communicate with your scanner from the Administrator Account but will not communicate from any other user account.  Log in to the account you prefer and perform the following.   Adobe says it is not
a bug in Adobe Acrobat Pro, but a Microsoft  user profile problem.  I disagree because all my programs work except for Adobe Acrobat Pro.
1.  Make sure that you have a password for your administrative user account.
2.  Elevate and display The Command Prompt as follows:
Start > All Programs > Accessories > Right Click on Command Prompt > Right Click on Run as administrator>
Agree to let program make changes to computer > The command prompt will be open.
The command prompt will display something like; C:\windows\system32
3.  Now it's time to run Acrobat Pro as an Administrator.  You may have to adjust the following statement to get the correct path to acrobat.exe. Edit the command prompt.  Space once after system32 and paste the following and hit enter. 
runas/user:administrator "c:\program files (x86)\adobe\acrobat 9.0\acrobat\acrobat.exe"
(do not space after 9.0)
4. Enter the administrator password when asked and hit enter.
5.  The program should start. 
You may wonder why you didn't just right click on the Acrobat icon on your desktop and run as administrator. The reason is because it doesn't work and this does.  I have tested this on Windows 7 Acrobat 9.0 Pro.  It's a pain to go through the steps everytime you open Acrobat Pro, but Adobe won't fix this problem.  I loaded a trial version of 11.0 and they still haven't fixed the problem so we will just have to use work arounds.  I'm not going to hand them another $199 when they refuse to fix the problem that has not been fixed in at least three versions.  Another solution is to create a new administrative type user account and move all your data to the new account.  No Thank you.  Adobe is not on my good list.