This worked yesterday not sure what changed. Other than my battery running dry, also I'm running 13.04.
Started up app tint2. Laptop booted plugged into second monitor via vga.
tint2 was functioning it was just not visible, aka. a window full screen still left space for the taskbar, and can select apps from the "invisible" bar.
Logged out and back in, same thing. Tried uninstalling and then reinstalling, same result. Then took it off start up apps and tried without the second monitor, ah ha that worked. After plugging in the other monitor I got this
(process:11352): GLib-CRITICAL **: g_hash_table_foreach: assertion `version == hash_table->version' failed real transparency on... depth: 32 xRandr: Found crtc's: 3 xRandr: Linking output LVDS1 with crtc 0 tint2 : another systray is running pid=10710 tint2 : nb monitor 1, nb monitor used 1, nb desktop 1
(process:11352): GLib-CRITICAL **: g_hash_table_foreach: assertion `version == hash_table->version' failed real transparency on... depth: 32 xRandr: Found crtc's: 3 xRandr: Linking output LVDS1 with crtc 0 xRandr: Linking output VGA1 with crtc 1 tint2 : another systray is running pid=10710 tint2 : nb monitor 3, nb monitor used 3, nb desktop 1