The New York Times’ tech guru David Pogue [link no longer found] tells of actual tech support calls on a “Best Of” CD compilation.
Caller: Hey, can you help me? My computer has locked up, and no matter how many times I type eleven, it won’t unfreeze.
Agent: What do you mean, “type eleven?”
Caller: The message on my screen says, “Error Type 11!”
[kudos boingboing]
Related: Tech Support, Tech Support 2, Tech Support Film Festival