Not sure what's going on, but I tried to download an app just now and as normal it wanted my iTunes password. I typed it in, and I know I typed it in correctly, tapped return and it just took me back to the first page of my home screen. Nothing happened, no download, nothing saying I typed it in wrong, just nothing. I tried it probably 6 more times and nothing happened. Any ideas? I haven't changed my password, and I k ow this particular password really well, so I didn't forget it or mistype it or confuse it.
Any help/fixes appreciated.