Hi @sisselromme plenty about this in for example this thread

You'll need active adapters, like the one @eamon mentions. Or VGA adapters that are in a way active (converting digital to analog), so you instinctively found the solution by using the VGA adapters

Fub

@fred aha!  I think enabling lan connections did the trick.  I can't believe I've been dealing with the lag this whole time, and it was something so simple!  I also don't know why that option wouldn't be enabled by default...

@woland, I think I've mentioned this before, but I often encounter a bug when using Mac's VNC.  It's like the client computer doesn't properly recognize the arrangement of the host computer's displays, and when I try to click on anything to edit, the cursor is actually on another screen.  https://discussions.apple.com/...

@jhoepffner @fred

@bonemap
Jacques, Fred and Bonemap, I have finally determined a workaround for being unable to save the large Isadora patch while editing. It is not related to having media on two different disks, as I thought, it happens when a background video is playing while I attempt a save or during an auto-save. This was an intermittent problem accompanied with one of  two error messages(see attached). If I turn off the movie player and projector associated with the background video, I can save the patch. This is very strange because I have been saving a patch while a video plays to stage since I began using Isadora 12 years ago. This problem occurred on a 2017 Mac Book Pro, 2013 Mac Pro, and 3 different PCs.

Don

I could only find a posting on this topic in the forum from 2012:

http://troikatronix.com/troika...

Is it still correct that a Mac Pro with a faster CPU will provide Isadora with better performance than a Mac Pro with more cores but a slower CPU speed? ...assuming the GPU, RAM and SSD speeds are the same on both computers?

Specifically, would Isadora work faster with a 3.5GHz 6-core Intel Xeon E5 Mac Pro compared to a  3.0GHz 8-Core Intel Xeon E5 Mac Pro, both using the

Dual AMD FirePro D700?

thank you,

Don