Nikon D40 Shutter Error?

My Nikon D40 keeps on showing the Shutter Error, and it's basically that the shutter is stuck facing up the way. It's not returned to its position.

I've sent it away to be repaired and it was sorted for a while, then it reoccurred so I fixed it at home and it was fine, but now its happened again.

I live in Scotland so obviously it's a fairly cold place at this time of year, I went out today and it happened.

Can anyone explain why? And if there's any way to stop this from happening. Also does the freezing cold weather contribute towards it.

First for clarity, what is sticking up is the mirror

Did you send your camera to Nikon for repair?

Cold weather can affect the battery, so you may want to carry a spare in a pocket close to your warm body.

I bet you did not know this but it is TRUE… When they are designing and developing there camera's they have what is called "Planned obsoleting" built into the camera. I.e they are designed to last so long then fail… It is so you will buy there "Latest"
OK think about it. If they lasted forever they would soon be out of business. Having said that you are always going to get the "Gadget geek" that has to have the "Latest" (I call them mega-pixel masterbators) ohh lots of migepixel means it is better… YER RIGHT!
Maybe the camera has done its little bit. How old is it 4-5 Years old. It is how long they are designed to last.
As a rule the little D40 is a gem of a camera.
Hope you get it sorted.

Seem to remember that the D40 was one of the cameras which used a CCD connected to an electronic (as opposed to an electro-mechanical one).So the one mechanical fault is the mirror sticking up. In exceptionally cold conditions, the battery tends to go mad, the effeciency goes down so much that you end up having it full, but still unable to fire one complete cycle off. Additionally the condensation caused when going from cold to hot is a absolute killer. You should avoid bringing your camera in from the cold straight into a centrally heated house or a hot car. Try and find a cold place for the camera and let it heat up progressively.