I'm new to the mac world. I bought a refurbed macbook pro 2.4. I did some research and didn't see anyone having issues with refurbed macs. It arrived and I was very excited to start working on it. I couldn't get it to stay on my wireless network for more than 15 minutes. I searched forums like these and saw some other people having the same issues blaming leopard. I made various changes to my airport setting, Linksys router and tried a Cisco aironet ap. The dropping issues continued. My fiance's macbook pro with tiger had no problems, neither did my work laptop (Thinkpad) connecting to either. I went out and drank some more of the Apple koolaide and bought an airport extreme. I still had the problems. I went to the Genius bar at my local Apple store. The fellow behind the bar mentioned that there was a problem with 3rd party routers after I asked if it was a problem with leopard as reported on the blogosphere. He thought that since I had an airport extreme it must be the airport card. It was sent out to to be fixed last week. I called 4 or 5 days later and was told it was just sent out (that day) and should be back soon. I called again today (2 days later) and was told that they received it (which didn't make sense if they had just sent it out 2 days ago) and did a diagnostic test on it and found problem with the logic board. I'm a pretty easy going guy, but this really ticked me off. Shouldn't the diagnostic test been done at the place they sent it to before they sent it back to the store? If it was actually sent out in the first place. Sorry for the long post, but I had to vent.