I installed Tiger on my 2001 500MHz white iBook and am generally impressed with how good it is. However, it seems that Airport is not working properly. It will randomly lose the signal for minutes (occasionally hours), then regain it. I have not been able to find a pattern or cause-and-effect relationship for why this might be. I've tried restarting, turning Airport off and on, and unplugging and replugging the card itself. Whether it works or not seems to be completely independent of anything I do. It does this on both wireless networks (college and home) I've tried. My college's computer hardware shop switched my Airport card with a confirmed working card, and the same problem was present, so I'm pretty sure it has to do with Tiger and not the hardware. It worked fine under Panther. I've also gone through Network Preferences and Locations with one of the IT guys, and everything is set up correctly. We're stumped. Has anyone else experienced this problem? Are there any fixes you know of? Or will I just have to wait until Apple releases a fix?