Recently I have been noticing some weird special characters on my PuTTy screen. There was no pattern to it. It will appear all of a sudden.
Its so annoying when you are working on a script.
Reason : To keep my windows active from locking, I had installed an application called ‘caffeine’ . Caffeine periodically sends a key stroke to my session active. Whenever caffeine sends a keystroke and if my PuTTy is active it a special weird character gets displayed on screen.
Solution : Set the status of Caffeine to InActive when using PuTTy and it solves the problem.