Is there something wrong with my computer?? Some special update that I don't know about?? this is so annoying!! I'm running Leopard 10.5.8 but this happened also on 10.5.7 and I am using an early macbook pro model - about 3 years old. I will be connected to the wireless fine all day then like right now it drops the signal and i have to hook my computer up to an ethernet cable. I can restart modem, router, and computer but I haven't found a solution except to try again in a couple of hours and it will work fine. I know it's a problem with the computer itself and my apple care just expired so i hope it's not a hardware issue. Anyone know anything? I've tried changing the password protection on the router but still same result. Just pissed off that my $3000 computer can't hold a wireless signal. Please help!