This is annoying as I have fixed it on other machines:
I have just installed Mint 11 on an old box and I use Chromium as my browser, but it is giving me the "Oi, your flash is old and you should feel bad" error message (I may be quoting the message wrong, but you get the idea). The trouble is I use Chromium on my other Mint 11 install, and on an ancient Xubuntu install and I've fixed this problem in the past... but how? I remember with Xubuntu I moved a file into a Chromium folder somewhere, but which file and which folder? I don't remember having a problem on the old, stable, Mint 11 install. I've installed the Flash plugin from the Ubuntu repository to no avail. My current solution is to load Chromium with the --sod-off-warning-me-about-out-of-date-plugins bit.