Currently Being ModeratedNov 22, 2012 8:21 PM (in response to drdocument)
No, it's not.
Checking the Finder/desktop preferences was the first thing I did when I noticed this behavior. Apparently this is a well-known issue as I've run across several other posts here on this forum, all with no answer on how to fix it.
I might well be that Apple will have to address this in another "dot" update.
Currently Being ModeratedNov 23, 2012 2:49 AM (in response to Robert Lane AZ)
I am unable to replicate your issue on the couple of Lion and Mountain Lion machines we have here in the office.
This does not mean you don't have the problem.
Did you try to create a temp user and check if the problem occurs there as well.
This is to find out if the problem is in your home user profile or it is system wide.
Currently Being ModeratedNov 23, 2012 6:17 AM (in response to Robert Lane AZ)
I also do not see the behavior in 10.8.2.
If the problem doesn't happen in a temp user account you could go back to your primary user account and delete from ~/Library/Preferences the following files:
After deleting these files you may need to re-set some Finder or Desktop prefs if the defaults aren't what you want.
The user Library is hidden, so you can get to it in the Go menu in finder, Go to Folder, and enter "~/Library/Preferences".
Hope this helps.
Currently Being ModeratedNov 27, 2012 2:41 PM (in response to Robert Lane AZ)
Rats! Sorry about that. It is definitely normal for ML.
Any third-party login items or prefs panes laying around?
You might try EtreCheck and see if it reports anything.
Or you might try TinkerTool and see if there are any unrecognized plist files hanging around, especially with the word "desktop".
Hopefully one of the gurus will see this and have more suggestions.
Currently Being ModeratedDec 4, 2012 9:37 AM (in response to drdocument)
Figured out the issue:
My MBP has a 23" ACD connected and is used as the primary display. Apparently the OS behaves differently with respect to drag-n-drop screen grabs when an external monitor is connected.
When I disconnect the external things work as expected - just as many of you posted in your findings.
Snow Leopard did not change behavior on an external monitor, so this is new behavior in ML.
I guess I'll submit a feature request for Finder and see if anyone else follows suit.