How does one downgrade?

[Lance Haig]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I am having quite a time with the upgrade to 4.50.14

I get loads of dependency problems and a 15 characters text e-mail is
taking 20 plus seconds to work through the system.

The system performed much better on 4.49.X for me.

I need to go back to the system before I upgraded as it has been two
days now and the delay is quite bad.

DO I just rename all the old directories and file to their original
names and all is ok?

What files must I make sure to rename?

Thanks Guys

Lance
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFD4l7ZM4kHBIBZ61gRAqIzAJ9hUIblwZL9WTJP95XeliyEJNqAMgCfXvQh
EXxCDjveTbJtBrCL1NWcE+M=
=E6/l
-----END PGP SIGNATURE-----