Sorry I missed your post, easyjo.

But you're right, I should expand a bit:

To ensure I was re-downloading the entire blockchain, I deleted everything in the $HOME/Library/Application Support/Globe/ directory, EXCEPT wallet.dat and globe.conf.

In fact, I took a backup of wallet.dat first (using "File - Backup Wallet"), deleted everything EXCEPT those two files, re-installed v0.4, started it up and let it sync.