Try verifying the application through Impulse.
To verify the application through Impulse:
-Launch Impulse. Right click on the entry for the application and choose "Verify Installation"
-Impulse will check the integrity of the installed application. You should be given feedback as to the state of the installed application.
-If errors are found, an update should be made available in Impulse. This is not an update to a newer version, but simply Impulse using the update mechanism to replace corrupted files.
-Once the update completes, reboot your PC.