I have an s6000fd camera. My son races motocross and I use my camera everyweekend at the ATVA National. I have a problem though, I think it has collected dust inside the camera. It told me focus erroe on Saturday and wouldn't let me take any pics. Then on Sunday morning it started working again but the pics weren't very clear. Any ideas?I need my camera for the Nationals. My son is currently ranked 2nd in the Nation! Thanks