Some time ago I downloaded Adobe Air. Since then, whenever I start up, I get a message saying "This installation of this application is damaged. Try re-installing or contacting the publisher for assistance."
I [I]have[I] re-installed it (several times, after removing the earlier version) but that has made no difference - the message still appears. It's not important as I can X the message, but it is a niggle as I feel I ought to be able to solve the problem.
Any suggestions?