actually it works when i disable that! thank for your reply!

See if it works when the option "Settings > Switching Desktops > Keep all taskbar buttons visible" is enabled.

1st of all Dexpot gave a great workspace for me! but i have this problem when i'm switching desktop that my app in that desktop is always minimize every times i switch to that desktop i have to to resize my app again and again but this problem is only occur when i am using Adobe Photoshop CS6.I have been looking around the setting but nothing work! any idea how to get this fix?