Well that's irritating. I did my usual 'wake up, turn on computer' routine and watched the screen through foggy eyes as I dressed. The modem connected like normal, but none of my messengers would work. I tried the browser, and got this message telling me to change my dialup phone number.
Fair enough. I did what I was supposed to, and now I can browse, but my communication software's all going 'huh? what connection? you're shitting me!' Hope it sorts itself out soon.