Ableton Forum

I've been having a problem with a lot of Max for Live devices - both from the library that comes with M4L, and the user library. I'm not able to manipulate parameters in real time. I can click and drag on them, but they don't change values. However, they do update when I click on the top of the device.

Any ideas why this might be happening? Are other users having the same problems?

I should add that my computer was able to (and has been able to) handle these devices fine until recently. Not sure what the cause is...

Thanks for any help.