I have YouControl (an app to customize the menu bar), and one tells the CPU usage. It was really high, so I looked to see what apps were taking so much CPU use. I thought iSquint would be taking a lot, but two apps listed as "movtoy4m" and "ffmpeg" were taking up about 70% on each space. The other apps are listed as "iSquint," "iTunes," "Safari," etc. What are these apps?? I'm scared they're viruses.