apache webdav svn locking issues

[Da Rock]

I've got a webdav setup on apache using svn, and all seems well until I 
use openoffice and it comes up with locking issues.

I can mount the webdav drive and use locking to stop the io errors in 
openoffice, but it still tells me it is locked and can only be opened 
read only. I've checked thoroughly and there is no .~lock file, but in 
the apache logs it says it returned a 423 error when the file is 
queried. Apparently openoffice requests again, and finds no .~lock file 
(404).

I'm assuming svn provides the locking data, correct? Anyone know the 
incantations to clear it?

Cheers