Are both Mac's seeing the same external drive name? OS X used Drive Names to identify external drives. Normally once you name a drive the name stays the same no matter what computer you move it to. But if there is another external drive connected that for some reason has the same name OS X will assign a number to the drive so they can differentiated.
Also is the external drive formatted in the Mac format.
Please give a bit more information...
What exactly do you see?? Screen shots are helpful.
Are both Macs using the same OS and which version of Lightroom is this???
Hello Geoff the kiwi
I hope I have found someone who can help me, here where I live. If it doesn't work I will come back, Tanks
That is good news..... you can learn a lot that way!! By the way I move between New Zealand and Uganda where I am heading again in Dec for another year!!