I found this. It shows how to take screenshots: How to take a Screenshot (http://www.take-a-screenshot.org)
I don't know much about Macs, but is your graphics card(s) updated? If it's looking fuzzy/blurry, that may be it. In-game, go to options > video and switch your rendering system. That might help a bit. Also, have you tried reinstalling FH? If you do, save all screenshots/presets/maps somewhere other then the FH folder.
Good luck!
EDIT: Remember, all screenshots are found in the screenshots folder in Feralheart > screenshots!
Thanks for the help AlphaEclipse, I'll be sure to try that if Feral Heart will cooperate and open today. I surely hope this will make things much better! My little sister and I (we both share this FH account since its hard to get 1 for the both of us) will try to figure out this problem. I'll be sure to tell you if this works.
Thanks,
Wolfine222.
No problem! I really hope it will cooperate... I have never heard of a 'fuzzy' screen. XD If I find anything else that might be useful, I'll either PM you or edit this.