Error RMClient Ubuntu 13.04

Hi,
enjoyed the RMClient and would like to use it in our company.
But all computers have Linux Ubuntu installed with 13.04 Unit interface but installed the Adobe AIR 2.6 as directed and when we try to run the RMClient the same error message appears:
This application requires an update to Adobe AIR that is not available for your system.
See the system requirements for Adobe AIR and update your appropriate system.



Can you help us? We've tried following various forums trying to perform installations and upgrades but the problem persists. .air Other applications work normally. Is there any previous version of RMClient that runs this version of linux with this interface?


Thank you.
Diego.