Is this a google bug?

Did you mean.....

[axa504]

searching for a wrong word :
[google.com...]
then in the "Did you mean ..." section the question mark is included in the link!

[heini]

Hi axa, welcome to WebmasterWorld!
The question mark is caused by the quotation mark you have at the beginning of the query string. If I replace it with a quotation mark from my keyboard, this doesn't happen, so I suppose it's an encoding problem of sorts?

[takagi]

The quotation mark is not even the normal double quote (" or " or ") but a 'Left double smart quote' (“).

[creative craig]

Welcome to Webmasterworld [webmasterworld.com]

Craig

[bird]

So Windows will substitute smart quotes even in the Google search box? How very smart of Microsoft to think of that... ;)