Xbindkeys As Startup Application Delays Display of Plank & Panel

With xbindkeys set as a Startup Application, the display of Plank and the top panel at the beginning of a new session, after reboot or logging out, is delayed by 45-60 seconds, occasionally much longer or not displaying at all. The correct background is displayed.

Xbindkeys executes this script allowing movement between workspaces with a mouse tilt wheel, stored in the home directory as ".xbindkeysrc":

```
# -- Move Right --
# This is the general command that works with any number of workspaces:
# "xdotool set_desktop $(expr $(expr $(xdotool get_desktop) + 1) % $(xdotool get_num_desktops))"
# This is the optimized command for 5 workspaces:
"xdotool set_desktop $(expr $(expr $(xdotool get_desktop) + 1) % 5)"
b:7

# -- Move Left --
# This is the general command that works with any number of workspaces:
# "xdotool set_desktop $(expr $(expr $(xdotool get_desktop) + $(expr $(xdotool get_num_desktops) - 1)) % $(xdotool get_num_desktops))"
# This is the optimized command for 5 workspaces:
"xdotool set_desktop $(expr $(expr $(xdotool get_desktop) + 4) % 5)"
b:6
```