I am continually having problems with my sd card when trying to flash new roms and kernels. I get a lot of errors that say something about not finding update.zip and sd card not mounted. I used to only get that when my battery was around 50%, but now it happens even with a fully charged battery. It is getting very difficult to add new stuff. Monday I copied everything from the sd card to my computer, formatted the card and put everything back on it. Is there anything else I can try?