My system is: 8.0 for Mac OS X x86 (64-bit) (October 5, 2011)
When I start Mathematica and call
I get the following output:
The message says:
Where does it come from and what is a RefBox?
The reason that
MakeExpression has any
FormatValues at all is because there's one defined in
GetFEKernelInit.tr for some experimental functionality (which we probably ought to clean up in a future release). The fact that it's experimental also led to our not fully implementing the error-handling cases of typesetting, which is the source cause of the pink box.
You could just ignore the pink box. Or, if it's really distracting, you can simply request the results in
FormatValues[MakeExpression] // InputForm