paren matching in common lisp mode in emacs 23

[Yuan Luo]

Hi,
I am using common lisp mode in emacs 23, and it seems to me whenever 
there is unmatched parens when I was saving a file, emacs reports paren 
not matched with cursor moved to where the unmatch occurs but then the 
cursor never moved back to where i was just editing. How do I tell emacs 
23 to move the cursor back? In emacs 22, it was fine.

Thanks,
Yuan