problems with emacs (or tramp) on FC5 ?

Hi,

Every since I have upgraded to FC5, I have had problems with emacs. What I 
observed is after a short time using emacs, the pocess emacs-x goes awol, 
using 100% cpu. If I go back to my emacs window I get the message

Opening output file: no such file or 
directory, /usr/src/build/719136-i386/BUILD/emacs-21.4/src/#RichPixelPositionMonitor.cpp#

where RichPixelPositionMonitor.cpp is the file I am currently editting.

One other possibly important point - I am using the tramp lisp package in 
order to open remote files via ssh (see 
http://savannah.gnu.org/projects/tramp)

Previously, on FC4, I had absolutely no problems with emacs+tramp. It worked 
perfectly. The problem only occurred once I upgraded to FC5.

Any ideas ?

cheers Chris