drag n drop not dropping

i am using a powerbook with 10.75 and saw the same thing. I rebooted to no avail. Dont have AirDisplay installed.

Solved by going to sleep and waking up as posted by another user above in this chain. Very very odd bug.

Thanks everyone for the help.

The solution that worked for me was to option-drag the item in the finder (as if to make a copy of it) and release. After that the sticky-drag issue seems to have resolved?

I've tried all of your solutions and nothing's working. I uninstalled AirParrot and AirPlayit, removed their kext files, put it to sleep, rebooted it, option-drag, repaired the hard drive (which, according to disk utility, was corrupt), and reset the SMC. Finder is still spiking ridiculously whenever I try to drag and drop, and the dragged item still sticks to my cursor and refuses to let go until I relaunch Finder.

Create another user account and see if the problem is still there.

Uninstalling AirParrot worked for me. Not just deleting the app file, but downloading their removal tool from their website. Removes drivers and all related files.

I finally solved this for me be uninstalling iDisplay - this was nasty, as the supplied Uninstaller fails, if you have installed this, and can't get rid of it, try following these steps:

Follow these steps to uninstall iDisplay - after downloading the installation program :

1. Right click on "Uninstall" in the iDisplay Desktop 2.1.39 for Mac OS X 10.6 Snow Leopard and 10.7 Lion (dmg, 1.44Mb).
2. Click on "Show Package Contents"
3. Enter Contents
4. Enter Resources
5. Enter Scripts
6. Double click main.scpt (this should open the AppleScript-Editor)
7. Press the Run button (it's the 3rd in the toolbar) (Ausführen)
8. Press OK
9. Wait till you see the dialog saying succeeded
10. Close AppleScript-Editor
11. Restart the Mac

I uninstalled Air Parrot and this worked for me.

Very useful - the comment which suggested to put the Mac tot sleep and wake it, when the problem of dragging-but-no-dropping occurs. It seems to work for me. Almost can't wait for the next occasion for this crazy making problem to occur and find out If I finally have a solution. Anyway, really thanks a million to whoever suggested this! You have made life a little easier...

Have to say that I have Air Parrot installed on my MacBookPro mid 2009 Mountain Lion 10.8.3., which I need for big screen presentations. I am not prepared to let Air Parrot go, since Apple seems to have no proper alternative. Hope their tech guys finally understand how this bug in their software can get one to smash the entire Mac Book out of some window and never want Apple again...

Uninstalling AirParrot and iDisplay didn't do it for me unfortunately.

Thankfully putting the Macbook Pro to sleep and waking it is a temporary solution that works.

Hopefully this will be fixed very soon. It is creating havoc with my editing workflow.

Thanks to all that have suggested answers on this forum. I've been tearing my hair out for weeks!

Was having the same EXTREMELY FRUSTRATING problem when moving from mac os X 10.6.8 to moutain lion 10.8.34 on my 2011 MBPro 15"2.8 GHz, without having AirParrot or iDisplay installed.

Did reboot via Recovery HD, repair HD and permissions, reinstalled Mountain lion, to no prevail.

But putting the computer to sleep does do the trick! THANKS SO MUCH to whoever made that suggestion.

However, I wish there was a structural solution for this.

APPLE PLEASE DO SOMETHING ABOUT THIS!!!

This worked! I set one of the hot corners to make the laptop sleep and after sleeping and waking, drag and drop works! Repairing permissions and safe boot does not work. Sleeping and waking does. I have AirParrot but it isn't even loaded so that may not be relevant.

Okay, guys. I did some deep (and I mean deep, cavernous reaches of the system folders kind of deep) searching and found a few stray AirParrot files. Since removing those, I have not had a problem since. As sad as it is to say this, Air Parrot MUST be removed in order to permanently solve the problem. I am very disappointed that this is the way it has to be, but I can't have my 2009 Macbook freezing up all the time (it's got enough problems already, due to its age. Remember when Macs actually lasted?)

I use a mid 2013 macbook air with 10.8.5. This is a new computer, but suddenly, I could still drag photos, but not drop them...not to desktop, not into iphoto, not from iphoto, not into folders, etc. Just shutting down and then starting up again fixed this problem.

Putting it to sleep and then waking it works for me to whenever this happens. (3 or 4 times in the last few months.) No AirParrot or anything else like that installed. 10.8 (Mountain Lion) on a Mac mini. Thanks!

This bug lives on!

I've been on Yosemite Preview for a month and this bug frustrates me to no end! I have a MacBook Pro (Retina, 15-inch Mid 2014) with OS X Yosemite Beta 6 and I encounter this bug about once a day. Putting machine to sleep and waking it up will fix it, but be better if it never occurred.

I suggest anyone seeing this problem submit a bug report to Apple. Doubt they monitor these forums much.