Fwd: error: Unable to append to logs/refs/heads/master:

Hi folks

I'm experiencing a weird error that I can't seem to get around...

$ git push
Counting objects: 67, done.
Compressing objects: 100% (39/39), done.
Writing objects: 100% (43/43), 6.20 KiB, done.
Total 43 (delta 33), reused 0 (delta 0)
Unpacking objects: 100% (43/43), done.
error: Unable to append to logs/refs/heads/master: Invalid argument
To /z/RemoteGit/Zcms.git
 ! [remote rejected] master -> master (failed to write)
error: failed to push some refs to '/z/RemoteGit/Zcms.git'

This usually works fine, so I'm not sure what's happend.

My config looks like this

[core]
        repositoryformatversion = 0
        filemode = false
        bare = false
        logallrefupdates = true
        symlinks = false
        ignorecase = true
[remote "origin"]
        url = /z/RemoteGit/Zcms.git
        fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
        remote = origin
        merge = refs/heads/master

Notes: Using with Cygwin + Windows XP, bare repos is on a network
drive.

Any help appreciated.

Tobin