Did you try the hotkey(s) likc C to toggle open/close?.
Did you use the mouse over on the "list" icon ((top left) to click the "Stats & Abilities" to open or close the Character Screen?
Are you referring to Phone or PC???
EDIT: I only ask since I am using a Win7 Home Operating System and Google Chrome 7 with no issues. + 1GB RAM PC
PC
it would open and close fine it was just stuck in one spot
could not move it any where