Went out yesterday for some early morning shots, only to find my camera has developed a fault. It does everthing as it should, but there is no image. It is exactly as if the lens cap has been left on. i.e no light getting to the sensor. The black image does 'speckle', as if the camera has turned the gain right up, but it can't find any light to process. AFAIK it hasn't been dropped or suffered a knock; it has just been sitting in it's bag since the last time I used it. The camera is a Minolta Dimage 7i. Intend on getting a DSLR within the next year, but can't afford it now, so any help would be appreciated.