I just got a first generation ipad, everytime i attempt to login to my itunes account (that i recent created) to dl an app like yahoo or facebooks i put my info in then the window fades to b lack and stays stuck if i puch any button it asks if i want to cancel but nothin else happens, it just stays black and never logs in. Anyone else have this problem?

Still havin this very annoying problem can anyone please help?