I saw that for the last couple of minutes that iStat's menu bar showed my CPU being at a full 100% usage. I closed the flash game I was playing, and it went down to about 75%. I checked the active processes, and iStat showed mdworker using about 90% of my CPU. Any problems? Google shows that it should be at the most around 40%. The only thing I have mounted is my boot drive, and Time Machine. Oh and a DMG file. My active applications are my wireless card application, Transmission, iTunes, Firefox, and iChat.