TSVN errors - Commit Sccessful, but I can't commit again without delete entire folder. And Can't clean up.

Hi,

I'm getting the error below whenever I commit. The commit is successful, but i can't commit again as it asks me to do a clean up, but when i do a clean up it says it fails. So I am basically stuck. The only solution I came to was delete the entire folder and then do a update to retrieve everything back. How can I resolve this? It gets quite anonying to have to delete everything and get everything back all the time.

I'm Using:
TortoiseSVN 1.5.2, Build 13595 - 32 Bit , 2008/07/31 17:04:57
Subversion 1.5.1,

And retrieving my stuff from samba server.

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Commit succeeded, but other errors follow:
Error bumping revisions post-commit (details follow):
In directory 'X:\images\site\sites\brands\expo'
Error processing command 'committed' in 'X:\jabba\images\site\sites\brands\expo'
Can't move
'X:\images\site\sites\brands\expo\.svn\props\but_submit.gif.svn-work' to
'X:\images\site\sites\brands\expo\.svn\prop-base\but_submit.gif.svn-b...\
Access is denied.