I've just upgraded to Debian Jessie, and things seem to work, with two
exceptions:

1   I couldn't run xinit /opt/trinity/bin/startkde
because ksmserver-trinity was not reinstalled by default. I think
because of dependency problems, 
since I had to downgrade a few packages to get it to install. But that
is now sorted.

2   Having got Trinity to run, everything (so far) seems to work
except kmail, my favourite program!
 4:3.5.13.2-0debian7.0.0.+0 has been installed.

I get the following:

23:40 ~>kmail
kmail: error while loading shared libraries: libkmailprivate.so:
cannot open shared object file: No such file or directory

But it's there...

23:41 ~>la /opt/trinity/lib/libkmailprivate.so
-rw-r--r-- 1 root root 8071664 Jun 14  2013
/opt/trinity/lib/libkmailprivate.so

It seems to be the only file with this problem - it has the same
permissions as all the rest.
Where do I look next?

And before you ask, no, I'm not using kmail to write this, but
webmail, so sigs and things are a bit different...

cheers

ant