Been having an odd issue. Having some scrolling issues in several areas of the OS (Safari, some apps, etc), but I can get it to show up every time when I hope the app folder in the dock and scroll up and down. I sent it off to Apple and they replaced both the logic board and the screen and after getting it back today it is still doing it. I have done a fresh install of the OS and the issue still persists (see the screencast video in the link below for an example). https://www.dropbox.com/s/74a5ulb3i2jlj5g/Untitled.mov My question is this.....has anyone else seen an issue like this? Outside of swapping out the SSD I'm not really sure what else Apple can do to resolve this. They pretty much replaced the rest of the internals in the machine.