thunderbolt monitor problems

I have a 2013 Macbook Pro HD and use the Thunderbolt monitor. It's a great combo save for only one issue. The monitor starts to flash (black to standard screen). It gets so bad I have to unplug the Thunderbolt connector and replug it in. The only fix to stop it is to restart my Macbook pro. Even that doesn't always to the trick.

I have looked at blogs/Google searches for fixes and havent seen any.

Help!