Just bought a Galaxy Ace and told I had access to 'hundreds of apps' at the touch of a button. However, when I 'touch the button' - the Apps icon - I'm left with the Installation Blocked message as mentioned in previous posts. How do I get past this message and download apps from Samsung or beyond? I press 'cancel' and a blue apps icon appears on the top left of my screen - I now have 7 apps icons !! and can't get rid of them. All help gratefully received.