Oops! Sorry, I forgot to reply to this. I did finally find a workaround, and it involved the "Folders with names" docklet. I just added a new Folders docklet, included the IP + path info as a destination, and it works a treat! No more 5 minute wait while it figures out whether it's reachable or not...

Thanks for the help Lantec. Drive mapping was going to be the next step, had this not worked.