Okay, so I don't ever really post to message boards so bear with me. I got caught up in all the hype of OS X Yosemite, that I was stoked to download the beta and give it a try. I got anxious and didn't think to make a partition for it. I downloaded it and installed it, and now my computer is utterly unusable. Literally every single app will lock up at any given point while using it. Mail, Safari, Chrome (not surprising I know), messages, steam, maps, iPhoto, and system preferences. Sometimes it will lock up for just 30 seconds, sometimes it is much longer, and more often then not, I simply have to force close the app. On top of that, I no longer have any control over the audio functions, and when I try to get into from Sys Pref, it just locks up and I can't get to it. I am not sure what to do at this point. If this is a common issue, I would be surprised because I have be searching for solutions to no avail. I would really like to continue playing with Yosemite, but I can't handle having a unusable computer. Let me know if anyone has faced issues like this and have found a solution! Thanks!