[plt-scheme] mzscheme 204.10: terminal prompt character not flushed?

Is anyone else having problems with mzscheme not flushing the prompt 
character? I am having the same issue with both Linux/x86 and Mac OS X 
compiles of mzscheme 204.10. Examples below:

-- Linux/x86 --
jcb/> mzscheme
Welcome to MzScheme version 204.10, Copyright (c) 1995-2003 PLT
(+ 1 1)
 > 2
(exit)
 > jcb/>

-- MacOS X 10.2.6 --

 > [bobo:~] jcb% mzscheme
Welcome to MzScheme version 204.10, Copyright (c) 1995-2003 PLT
(+ 1 1)
 > 2
(exit)
 > [bobo:~] jcb%