Mac Boxer - Problem with setting up how I log into multiple clients at once

[shadewalker]

Negohm-Main WoW folder and App name
WoW1- second folder and app name

i am a little confused why your Main WoW folder is called Negohm. Is this a localizations thing?

Since the 4.0 patch i have had trouble when there is not a WoW installation at the default path of /Applications/World of Warcraft/

That could be part of the problem

I tried,
In -s /Volumes/derFlaask/NegOhm/Data//Volumes/derFlaask/WoW1/Data
ln -s /derFlaask/NegOhm/Data//derFlaask/WoW1/Data
the Terminal says "In ./Data: File exits" but nothing happen

This looks like you are missing spaces in the commands. did you type them like this or with a space like this... may just be the forum formatting

In -s /Volumes/derFlaask/NegOhm/Data/ /Volumes/derFlaask/WoW1/Data
ln -s /derFlaask/NegOhm/Data/ /derFlaask/WoW1/Data

if all else fails i would suggest just making a copy of your entire wow installation on the second drive and manage it completely separate from the default installation. This would allow you to have different video and sound options for the slaves vs master.