I have been looking around MR and on google and cant seem to find anyone with this problem. My screenshots, instead of having a shadow, has a thick black line round it.
If anyone has had this problem, and fixed it please let me know its really annoying me. For some reason it's happening on both my MBP and iMac.

If anyone has had this problem, and fixed it please let me know its really annoying me. For some reason it's happening on both my MBP and iMac.