Hacking SuperKey and EFA Linker

[lsrsera]

I just received my SuperKey a few days before, and I was hoping that it would work with my EFA Linker 256Mb cart until I saved up some money for a new card. I only get a white screen when I try loading up anything from the flash cart.

Does anyone know if the two are compatible with each other? Or am I out of luck with this combination?

I was hoping to get a little more use out of the EFA, but if it's not meant to be, oh well.

Thanks