Over the last week or so, Yahoo IM has seemed real wonky to me – I’ll be sitting there and notice this person or that is signing in/out/in/out; or I’ll be hanging out, thinking I’m logged in, get an email saying “bummer, was hoping to chat, catch ya later” – and realize that not a single name is lit up on my list, and, yup, I need to reboot the whole machine (not just leave Yahoo IM and go back in) to get on with them.
Is it just me?
What client are you or your friends using? Yahoo recently changed something in their software yet again to confound third-party clients like Trillian. If either one of you is using Trillian or the like, that could be your problem right there.
Been happening to me too. Ever since they upgraded the email, I think. It was really bad the past couple of days, but today it hasn’t happened to me once. I was thinking it was fighting with the complany firewall, but the guy who sits next to me has had no trouble with it.
My ISP is MSN; will have to check with the people who are having problems to see what they’re using. Thanks for the tip – any ideas about how to get around it if they are using Trillian?
Well, occasionally this obviously insane doper bent on world domination IMs me, but other than that, Yahoo Messenger is working fine. 
Other than using the actual Yahoo IM client, not much until Trillian and the like figure out what Yahoo did and change their clients accordingly. The story was on Slashdot last week, so you might want to go take a look through their archives.
BTW – you haven’t given me your boss’s phone number yet.
Oh, and thanks, asterion – though you can probably tell from the caliber of my questions what my level of cybersavvy is. 
Upgrade to 0.74i from whatever you have now. At least, that’s what made it work for me.
I see it’s already been fixed. I wasn’t keeping up on this, as I almost never use IM and then I use the first-party clients when I do.