I haven't had good experiences with Gateway "support", hopefully we can do you better.
What does the error message say exactly? What is the name of the keyboard program?
What happens if you try to launch the program manually? It might also help to launch it as an administrator.
Hotkey problemHave you already searched for a new version of that program?
A long shot: open "Programs and Features" in the Control Panel and see if the keyboard program is in the list. If it is, it's possible it has some kind of "repair" option.
Hotkey problemWelcome to Donation Coder!