You have to open the *.jar file in WinRar and then open file “manifest.mf” from folder “META-INF”. Then write
there this in the end:
Nokia-MIDlet-Original-Display-Size:
176,208
Nokia-MIDlet-Target-Display-Size: 352,416
First is original resolution of game and the second is the resolution of
your phone.”
Detailed Info:
Open the jar(with winrar)
->open META-INF (directory)
->Open manifest.mf (drag it to your desktop and open it with notepad)
-add the two lines
Nokia-MIDlet-Original-Display-Size: 176,208 (the original resolution of the game)
Nokia-MIDlet-Target-Display-Size:
352,416 (the resolution of you
phone)
->Drag the edited manifest.mf back to your jar (in meta-inf directory)
->Close Winrar
->Send to phone
Enjoy!