So this is whats happening;
I use Photoshop to paint with. I will draw a line with the brush tool, and I want to cmd+z to get rid of the line, but when I push cmd+z nothing happens. But if I hold the space-bar and move the canvas a bit, the hotkey will then work. But this problem happens with every single hotkey, every single time I make a stroke, which is EXTREMELY frustrating. I can't be moving the canvas after every stroke through a painting, it is just really annoying.
Please can anyone help! I'm working with the latest CS6 as well as the latest OS X Yosemite on an iMac and my keyboard is wired. I am also going to submit for help at Apple, because I have no idea if it is the software or the OS. If anyone out there is dealing with this same problem, or has found a fix for it, please tell me asap!
Have you installed the WhiteWindowWorkaround plugin for CS6? That avoids some known MacOS bugs that cause white windows and loss of events.
And lots of people are having a variety of problems with MacOS 10.10. It really doesn't seem stable yet.