Comment 7 for bug 1026247

Week 30- Same issue observed ubuntu 12.10 quantal (Nvidia) with ppa:SIL2100 as in https://bugs.launchpad.net/unity/+bug/1028914
As per the instructions in the comment by Daniel van Vugt (vanvugt) I am adding more info to this bug.

Pressing and holding the mouse button over a launcher icon detaches the icon.
Issue is with the icon's image, the icon's edge looks cut-off and not smooth. Observe the icons edges when it is attached to the mouse, without moving the mouse. Cannot provide screenshot as in the screenshot the edges look complete and fine.
This behaviour is not consistent, need to try multiple times to reproduce it, one way is to click and hold exactly on the corner of the icon (on launcher), you can see the corners are cut-off.

Follow the steps below to reproduce:
#. Move the mouse so it is over a launcher icon for an application
#. Press and hold the mouse button