A couple of days ago my computer stopped being able to connect to my wireless network. One day it was working fine, the next it wasn't. I've tried deleting the wireless connection details and starting again, but all I get is a dialogue asking for my keyring password. As far as I can remember from when I installed ubuntu I didn't set a specific keyring password so have been trying the only system password I have setup. This doesn't work and the dialogue box keeps reappearing. Any ideas?