Quote Originally Posted by Remote
It happened to me when I first got my setup quite often.
Basically the things I changed are as follows:

-Make two copies of WoW (and only two). One for your main and one for the slaves.
-Turn the graphics as low as they will go on the slaves.
-Set your max fps on the slaves to 10 or 15. /console maxfps 10
-Run your slaves on two processor cores and your main on two processor cores.
-Having as few mods enabled on the slaves as possible always helps.
Slaves are at minimum settings locked to 15fps when not active and 30fps when active.

I haven't done anything special for processor affinity. I suspect this is not a CPU issue.

Mods is a bare minimum at the moment. I think I have gatherer on my herbalist, tradeskill mod on all of them, Omen on all of them and the Bongos minimap addon so I can size the minimap to where I can actually make stuff out.

But I don't think it is a AddOn issue either as I've had it occur now and then even before I added any mods to the slaves.

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I suspect my 5x WoW installs might be the problem though. I can see this fitting a caching issue problem.

I'll try running all the slaves from a single WoW install on the 2nd HDD and see how it goes.