I am facing problem in memory card slot whnen ever i try to run the pogram its always saying initialization failed and i try a new one memory card I am facing the same problme but ...

I am facing problem in memory card slot whnen ever i try to run the pogram its always saying initialization failed and i try a new one memory card I am facing the same problme but when i try to your 320*240 display its working fine with the same memory card. Cna you suggest me any possible reesoans i can also share my code with you.