Hi, I've used Node on the previous Logic 8 before and works fine between iMac 2Ghz as host and MacBook 2.4Ghz as node. Also with router and internet connection. Right now I have a new project, so I want to hook up the node again with Logic 9, this time with an add-on of an MC mix, but not working as the Node icon always showing the 'green arrow', not the 'green box'. I have tried to run the node directly from iMac to MacBook, still the same result. Well, I just took half a day to make a fresh install of SL and Logic 9 on iMac, thought it might solve the problem, still the same green arrow. I just don't know what to do anymore,, might someone help me? Truly appreciate.