Possible Duplicate:
Strange ::usage behavior in v9
Has anyone had any issues with a function, let's call it Function, which worked in Mathematica 8 getting the error message
StringMatchQ::strse: "String or list of strings expected at position 1 in StringMatchQ[!($Failed, \"Function*\")]"
This message occurs not after the function is evaluated, but instead a dialogue box appears if one uses the backspace key while typing the arguments of the function.
