Ah yes i am, i should have thought to turn the cache off and check 
what was happening before, bug reporting, sorry!!! (Ill check first in 
future)

You wouldn't happen to be using a PHP accelerator/cache program, would you?

Updated horde-framework to CVS-HEAD. The problem has gone. It looks 
like it must of been an IMP issue which has now been resloved.

The final results of my testing with various versions of the c-client:



2001 - cannot access any parts of IMP, the mail box summary is shown 
on the main portal page, but clicking on a mail box has no effect.



=>2002 - can access IMP, view folder contents etc. But clicking on a 
message still  only gives the message headers repeated where the 
actual message should be.

I have tested with 2002e and 2004a c-client, same result.



Interestingly, with PHP compiled against 2002e, phpinfo says:



imap

IMAP c-Client Version         2001



But when compiled against 2004a phpinfo says:



IMAP c-Client Version         2000

Are there specfic versions that are known to work correctly? I have 
mod_php 4.3.8 and c-client version 2002e-r2. I am reinstalling both of 
them anyway to be on the safeside

This is probably a broken PHP c-client combination. Try upgrading one 
or both of those.

In IMP when you click on a message to read it. It just shows the 
messages headers in the space where the actual message content should 
be. Clicking show source displays the entire message+headers as it 
should. Clicking on show all headers shows that IMP has processed the 
Headers properly