Hi, I just installed my airport extreme and got it up and running, however, the signal is horribly weak. I have a thinkpad that shows about an 80% signal and when running macstumbler the ibook is showing about 20% signal. I have a siemens wireless router that is providing for about 4 wireless computers plus the ibook. The others have great signals....anyone have an advice as to why the signal is so low on the ibook? Thanks. btw...I'm runnung software 3.3b1.