Hello, I haven´t used my Aiport connection for a few weeks and now when I try to connect to my sisters open WIFI-network I get the "unable to connect" message. Also, it doesn´t work when I try to connect after booting up the XP-installation either. It seems I´ve tried everything: zapped PRAM, removed coconut WiFi, refreshed the system configuration folder and com.apple.systemprefereces.plist and reapplied the combo-update (10.4.9). The only things I haven´t tried is the hardware-test (because I haven´t got the cd here) or connected to any other networks. The router is a Netopia 3357 and the MBP is the 2.16Ghz. But I don´t believe it would work on any other networks, since there is no reason for it not to work here since my sisters laptop can connect easily. Only thing I can think of is that my airport is broken, or maybe a loose wire. Should I just hand over the problem to Apple, or try to fix this in some way?