Not sure if anyone else has seen this or has had this happen to them. A client of mine phoned in complaining that his alt+0178 command, to get square meters, wasn't working. The issue is that he would hold down alt and while he was waiting these tool tips would pop up all of a sudden. ( See Image Attached )
The thing is that this happens only in Autocad 2010 and Revit 2010. Seems like this is a new feature from Autodesk that wasn't documented at all. The only way to type in the alt+0178 command is to do so really quickly before the key tips show up.