Running Java games on Nokia

[Junkie]

I have several mobile java games (.jav and also .jad files) and use a Nokia 6680. When i install them on the phone they run with a menu bar accross the bottom of the screen, obscuring most games' options making them impossible to play. Can anyone help me run them full screen, or give any other advice?

[MusikMonk]

This happened with me (on my 6600) but only with games that are originaly for other devices & I didn't find a way to fix that... & I also heard that 6630 & 6680 can't open some java programs/games that works on older devices..