Hi all I have been taking photos with the i5700. I notice that (looking at the files in Explorer) they have suddenly dropped in size from and anverage of 1.5Mb to around 680Kb.. the resolution is still 2048x1536 for all of them. I thought it might be a quality setting but I only see this for video quality on the menu. Something has changed.. but i don't know what. Thoughts, please ?