I was driving home yesterday while my friend played civilization on my DS. He said that it froze on him, which confused me, since that has never happened before with civilization, so I told him to reboot. He tried, and the loading bar froze at 0%. I tried a few more times and got the same result. I took out my SD card and the loading bar worked, but obiously nothing happened because there was no SD. I am assuming that this means that there is something wrong with my SD. I've had my Cyclo + 4gb Class 2 () Micro SD for over a year and this hasn't happened before. I'm also using the latest stable firmware (1.5 i think). Do you think that formatting my SD would do the trick?