Why is the screen so small when I play downloaded games on my Sony Ericsson W760?

[AdamSive]

I have downloaded a few games for my Sony Ericsson W760, but they are not displayed full screen, and are quite small, any help? They are from a few different sites so probably isn't the games themselves

 

[JoshWebber]

I had a w595 and i downloaded a load of games for it. they worked fine but the screen wasnt full size i later found out that the games were oringinaly desgin for w810i which has a smaller screen so there was my answer