Cant get the Rom to work

im using a G6 real and when i load up a NDS rom it loads then the top screen goes completely pink and just sits there
what do i do to get it to work

You tell us which game it is and make sure you have the latest firmware.

im pretty sure i have the latest firmware
i tried downloading several other games but they all turn out the same

Might be a faulty G6 cart then.

If the G6 requires a patch, did you patch the ROM with the card's software?