I am using gDesklet StarterBar in my ubuntu machine (updated till
today). I added some games in the starterbar. But later i uninstalled
the game.

But now I have a problem. The icon changed into a big "?" and I am not
able remove the icon from the starterbar. I also found that i cannot
remove any icon from the starterbar. Is there any way to remove the
icons from the starterbar.

I did a drag and drop to put the icons onto the starterbar. I cannot
do drag and drop to remove. I can only click or right click. There is
no option to remove the icons on the right click.