Can't remove item from dock.
Hello,
I'm unable to remove some items on my dock, but not all of them. For example, I can remove the default iBooks icon by either dragging it off the dock or by right-clicking on it and, under options, selecting "Remove from Dock".
Altought this is working great, I don't seem to be able to remove some other icons as for example "Adobe Reader". If I drag it off the screen, the little cloud will never appear and the icon will slide back to the dock. If I try to drag it in the trash can, it will simply slide back where it was before, and there is not "Remove from Dock" item under the options menu.
I tried deleting the ~/Library/Preferences/apple.com.dock.plist file then "killall Dock", yet nothing to do. I also tried reseting the dock with its default value, and that brings me back to the point where I can remove some icons, but not all of them. Worst even, the "Applications" (which contains all my apps) got replaced by the "My Applications" folder (which is empty).
I also made sure the application I wanted to remove from the dock were not running. Yet, I can't figure what to do.
Does anyone knows any other tricks I could try?
Thank you.
MacBook Pro with Retina display, OS X Mavericks (10.9.1)