My MacBook Air 2011 model is connected to my home network that are populated by Windows machines running Windows Vista or Windows 7. The problem I have is that when I review Network on my Mac Finder, it takes a long time before those machines will appear. Once appear, I can access the shared folders normally. However, I can't find a find to force a manual refresh of the Network on Finder so that the networked computers will show up immediately (like Refresh in Networks in Windows Explorer). I read many thread on pre-Lion machines that pre-Lion systems have lots of trouble "discovering" NTFS based machines on a network. But I can't find any info on Lion systems. How do I do this on Mac Lion?