Please check Control Panel...Programs...Uninstall a program for both the Linksys and the Azio programs.
Remove them from there, then visit the Device Manager and remove anything that's leftover from there.
Then go to C:\Windows\System32\drivers
and rename the scmndisp.sys to scmndisp.BAK (don't worry if it's not there).
Then install the Azio program again and see how it works.
Check in C:\Windows\System32\drivers to see if the Azio program installed a scmndisp.sys driver
(just to be sure).
Check the date on the driver to ensure that it's not from 2007. If it is, post back and let us know.