Horrible. In all my mac user life I have seen Macs freezing as Windows freeze. I use my macbook Pro at work and at home. It is when I join either of the two wireless signals, when I get a freeze (about 5 minutes after joining.) I looked at the system profiler >logs>system for anything significant. I can't find anything. I remember messing with network configurations to change a DNS setting. About that time things started happening. So this morning I deleted my Airport configuration and rebuild a new one at the network preferences. Anyone has an idea why this happens? Thanks.