I have a Macbook Pro with OS 10.7. I have used the Time Capsule for quite a long time and not had any problems. However, lately I can't do any backups as it says 'device can't be found'. On the actual TC the amber light is blinking and in Airport Ulitlities there is a yellow triangle with a black exclamation mark beside the name of the TC. I have also recently started using an external hard drive for my pictures and am wondering if that could have anything to do with my TC problems. I have tried everything under the sun to fix it but it doesn't work. Can someone out there please help me?