I am running os x Yosemite. I have 480 GB of available storage. Every application i use (except safari) is working. For example, if I open Photo Booth, nothing happens. I press cmd+opt+esc and it says not responding. then i have to force quit. This happens with every other program. In audacity i can open it and record things. but if i save the project, i get a beach ball and i have to force quit. If i try to make a video call in Skype, same thing. All of these also happen with the adobe suite. No program will work. For some reason, the programs only work in safe boot. I tried verifying and repairing disk permissions. That did not work. I tried uninstalling everything program on my mac (except default programs). I even went as far as reinstalling os x all together. Not even that solved the problem. My mac had to be taken back to the store. They said nothing was wrong with it. What could be the problem. I don't think it's a hardware issue. Don't think it could be a software issue either because I reinstalled the entire os. So what could be the problem? I don't to us my computer in safe boot because my Wacom tablet will not work and the computer will be slow. Please give me a solution. This mac is the only computer I have and I need it to animate. Thanks in advance!