Ubuntu One: no systray icon

Question

I have been using Ubuntu One since past one month on my Arch_Gnome-shell 3.8_64bit. Its working good.
However, there is no systray icon (the cloud icon) in the notification bar. Without it I am forced to open the GUI all the time. I don't know if this is normal for Ubuntu One on arch_Gnome or whether I missed something.
Is there a way to get that 'cloud' icon on the systray?
I have searched the web and wiki but nothing relates to the issue. I will re-search again though.
I was hoping if some out here have figured a resolution.

Answer 1

here is my tint2 file
# TINT2 CONFIG FILE
# BACKGROUND AND BORDER
rounded = 7
border_width = 2
background_color = #000000 10
border_color = #ffffff 18
rounded = 5
border_width = 0
background_color = #ffffff 40
border_color = #ffffff 50
rounded = 5
border_width = 0
background_color = #ffffff 18
border_color = #ffffff 70
# PANEL
panel_monitor = all
panel_position = bottom left
panel_size = 0 30
panel_margin = 0 0
panel_padding = 7 0
font_shadow = 0
panel_background_id = 1
wm_menu = 1
# TASKBAR
#taskbar_mode = multi_desktop
taskbar_mode = single_desktop
taskbar_padding = 2 3 2
taskbar_background_id = 0
# TASKS
urgent_nb_of_blink = 2
task_icon = 1
task_text = 1
task_width = 140
task_centered = 1
task_padding = 6 3
task_font = sans 7
task_font_color = #ffffff 70
task_active_font_color = #ffffff 85
task_background_id = 3
task_active_background_id = 2
# SYSTRAYBAR
systray_padding = 0 4 5
systray_background_id = 0
# CLOCK
time1_format = %H:%M
time1_font = sans 8
time2_format = %A %d %B
time2_font = sans 6
clock_font_color = #ffffff 76
clock_padding = 1 0
clock_background_id = 0
clock_lclick_command = xclock
clock_rclick_command = orage
# BATTERY
battery = 1
battery_low_status = 10
battery_low_cmd = notify-send "battery low"
bat1_font = sans 8
bat2_font = sans 6
battery_font_color = #ffffff 76
battery_padding = 1 0
battery_background_id = 0
# MOUSE ACTION ON TASK
mouse_middle = none
mouse_right = close
mouse_scroll_up = toggle
mouse_scroll_down = iconify