User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.4) Gecko/20070703 Firefox/2.0.0.4
Build Identifier: 

Currently thunar uses the gtk-menu-popup-delay variable to decide when to treat right-mouse-button presses as file dragging or opening the context menu (see thunar-standard-view.c:thunar_standard_view_queue_popup). IMO, this use of the variable has little to do with the actual purpose of the variable. If the user has set the gtk-menu-popup-delay variable to a small value to speed up menu navigation, it becomes difficult to drag files.

Reproducible: Always

Steps to Reproduce:
1. Add the following line to ~/.gtkrc-2.0:
gtk-menu-popup-delay = 50
2. Log out and back in.
3. Try to drag a file or folder in Thunar. It usually won't work unless you are already moving the mouse when you press the right mouse button.

Actual Results:  
Many times, the context menu will open instead of dragging the file.

Expected Results:  
I expected to drag the file.