Getting an odd error while in a group
 

Message: ...face\AddOns\Blizzard_InspectUI\InspectGuildFrame.lua:18: Usage: GetGuildInfo("unit")
Time: 12/17/11 22:22:29
Count: 13
Stack: [C]: in function `GetGuildInfo'
...face\AddOns\Blizzard_InspectUI\InspectGuildFrame.lua:18: in function `InspectGuildFrame_Update'
...face\AddOns\Blizzard_InspectUI\InspectGuildFrame.lua:8: in function <...face\AddOns\Blizzard_InspectUI\InspectGuildFrame.lua:6>

Locals: (*temporary) = nil

This pops all the time when I am in a group... any ideas?

Are you mousing over a party members frame when you see that happen ? Or clicking on a target etc.

It's not showing up any addon as being the one calling blizzards function. But the GetGuildInfo does get used in many addons that need that sort of information but this time it looks like its a blizz message that is kicking up a fuss about it.