Things like this remind me how dependent I am on IM for doing any work, which is weird because it doesn't feel like that should be the case. If you were to measure the raw number of seconds I spend sending IMs, it would be a relatively low percentage of my day, but I always forget how vital that percentage actually is.
As it stands, while I'm not fully blocked from being productive, I am blocked for a lot of work that needs to get done.