Problem in installing jar games

[FAIRFAX]

I have problem in installing jar games in Nokia E51 . when the installation is almost 70 to 80% completed, after that say "unable to install". may i know whats the reason.

[Ekavir]

Nokia E90 phone supprots 240x320 games. Install 240x320 format games in Nokia E90.

[FAIRFAX]

i might have accidentally deleted some file in the memory card. could this be the reason ?

[AniketS]

go to App Manager in "Installation" folder,and goto Options > Settings. There try changing "Signed only" to "All"