[troyb]

This is a known issue. The problem here is that OmniWeb ocasionally caches the WebKit default favicon instead of the sites proper icon. Once this happens OmniWeb thinks the site has a blue globe favicon (since it gets listed as such in the favicons cache) and it happily retrieves this instead of using the OmniWeb purple bookmark or the appropriate site icon.

I don't have a reliable way to get rid of this but you might try quitting 5.5 then launch 5.1.3, flush cache, quit and reload OmniWeb 5.5 again.

Might work might not, some other voodoo combination may do the trick. We're looking into this.