How can I turn off Print screen capture to dropbox? I want it to just go to my clipboard

[jdlimages]

I used to be able to hit ctrl print screen and copy the screen capture to my clipboard then paste it to documents etc.  Dropbox thought it knew better than me and now uploads it to dropbox.  How can I override this irritating feature?  Thanks! 

[maher1982]

try this one: 

go to Dropbox preferences > Import, then uncheck the box next to "Share screenshots using Dropbox."