When you select a icon on the desktop and then right click the mouse button while the pointer is on the icon or any other place then the icon flick once. The icon disappear from the desktop to some milliseconds and then return.
Reproducible: Always Steps to Reproduce: 1. Select an desktop icon. 2. Click the right mouse button. Actual Results: The selected icon disappear and return, and this seem as a flick. Expected Results: Stable icons draw. Ubuntu Jaunty Jackalope
This bug doesn't occur anymore with xfdesktop4.10/11.