I have an Ubuntu 10.04.4 web server, and I have set it to run byobu on session startup.
To start with it all seems to work fine, for example F9 brings up the menu and F7 starts the copy/paste process.
When I connect to the server using PuTTY from my PC, the problem is that when I press F2 to create a new window, the screen just flashes, and no window is created.
I have tried setting PuTTY to use
Xterm R6 in the function keys settings, as per the man page and mailing list, but have also tried using the default