I too have this problem on a site Zarcon..
This site was 7.0.3 fresh initial install when it was previously released.
I did the patch and have attached the results page from the patch; received absolutely no errors..
Changed the permissions on chat file and re compiled modules and then just the only language file I have, English.
Attached to are the screeshots of the anti Spam problem.
Now on another site running .3 patched to .4 has no problem on the Spam page...compiled great.
OK, I forgot to do one thing now that I remember doing this patch late last night....
I didn't clean the cache file manually!! Just did and FIXED..
Sometimes we need to re check our selves with a fresh mind, mine was over loaded with turkey tryptophan.