Quote Originally Posted by spher0boom View Post
I saw this in one of Ualaa's posts last night, and went looking for it after that. A couple of forum posts identified WoW users who reported that when clicking on secondary screens InputDirector was also still clicking on the primary screen, so I didn't end up trying it. If that isn't the case for most users I'll go give it a try if I end up using multiple PCs.
Not entirely sure on that. I know a lot of people use Input Director with ISBoxer (Synergy has shown to cause issues) when using two different computers to play. I only multibox on one machine, but I've had ID installed for years so I can use both of my machines at once. I can't say that I've heard of many ID issues as of lately.

Quote Originally Posted by spher0boom View Post
Yes, I'm talking about 2 different monitor resolutions off the same GPU. I'm not sure what the problem was, it wasn't identified in the post, I believe you were still looking in to it. I don't know what the P-State is ... I'll do some research, thanks!
P-States are power states. Multiple monitors of different resolutions (or refresh rates) or having your cards in SLI will cause the main GPU to not downclock to its idle state. You can force it to downclock via third-party tools like nVidia Inspector, but if you don't remember to turn it back up when you begin to play you're going to realize very quickly that something is wrong. Years ago I was manually forcing power states on my cards so that they'd be idle when I wasn't playing games... that lasted about a week before I got tired of continuously forgetting to turn it back to its normal state and having my games load up at 3 FPS.

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Quote Originally Posted by spher0boom View Post
My Preference would be to have two 23" 1080p monitors in portrait mode on either side of my primary and do 4 x 1080x810 windows for he slaves, but i'd have to buy 3 new monitors and end up limiting myself to 4 instead of 6 given my space, which doesn't work well with the other tasks the computers perform.
1080x810 seems like an odd aspect ratio (1.33), you would get better visual quality on those screens if you tried to keep the AR as close to your main client's resolution as you can (1920/1080 = 1.78). Not to mention, if you ever felt like disabling ISBoxer's instant swapping and wanted the mouse cursors in each window to sorta line up, then the AR would need to be close to identical on each screen.

Quote Originally Posted by spher0boom View Post
I have the extra 8800GTS cards. Would one of them come close to supporting two 1280x1024 WoW sessions on medium settings? I'd be happy with 4 1280x1024 windowed slaves. If not, what would be the minimum card I should look at as a secondary if I attempt go this route?
I think you need to just get your new GPU and see how it handles five clients @ 1920x1080 and then go from there.

Quote Originally Posted by spher0boom View Post
The mouse broadcasting thing is actually something I completely forgot about. I used to use Octopus and HotKeyNet, which did relative movements, so my screens never had to be the same resolution. This time around I was going to try ISBoxer since everyone here seems to love it. I have a lot of learning to do around ISBoxer, but I see several forum member have put together nice guides, so I have a good place to start . Does ISBoxer offer any 'relative' mouse broadcasting capabilities if I chose to not use the same resolution on all clients?
Yes, you can disable instant swapping and scale your mouse cursor to fit to the windows.