I had some issues today with remote network shares in Mac OS X, when browsing sometimes the finder does not refresh the listing properly (something to do with caching). Now, in Windows, Pressing F5 will force a refresh. Mac OS X doesn't do this. I knew the file I wanted was there, because I could see it in the terminal. I didn't want to eject the volume either since I was currently working on it. What I found, is that creating a new folder or file in the directory will force the Finder to refresh that directory.