For some reason when I go into render settings I cant change the value for "end frame" in the common tab. I can change values for start frame, frame padding etc but the end frame box appears to be locked, much like it is when you have a single frame file extension selected. Not sure if ive accidentally change some settings for this to occur but there wasnt a problem last week. for example i want to batch render from frame 150 to 300, i can change the start frame to 150 yet the end frame seems to be stuck on 10??? Oh... and also, this problem doesnt seem to occur if i was to start a new project, only if i open a saved project. Any help would be greatly appreciated