I had to quit using Safari after installing Lion, it was using 95%-100% of cpu and 2.4GB real memory, so I started using Firefox...no problems. Just installed 10.7.2 and started getting high memory notices again. This time using Firefox. Using the activity monitor I found SafariDAVClient using the same amounts that Safari was using when running. What is SafariDAVClient, what is it's purpose, and how do I get rid of it?