grip shutter release unreliable

Before I head off to the camera shop and loose my battery grip for a month, has anyone come across a problem of the shutter release not working on the grip?
mine was fine when I bought it in Aug, but now it's unreliable and only focuses if I press it hard enought to release the shutter.
I don't use it very often (keep forgetting it's there!)

No problems with mine, sounds as though the switch in yours is definitely faulty. I use mine quite a lot.

Dan

Just as a thought, have you tried cleaning the contacts between the body and grip. One of these must be the one to activate the focus, so it might be that there's a bit of dirt fouling the connection.

Worth a try.

Dan

Thanks Dan, I tried, but no joy.
It did work at first and I thought you'd cracked it, but then it just stopped. I'll have another root around.
I think I'll wait till after Christmas to get it fixed tho'.

problem solved!
I bought the Camera locally in Plymouth at the London Camera Exchange, so I went back and asked them what they thought the problem was and after trying a new grip to make sure it wasn't my camera, they just replaced the grip on the spot. They are a 'Pro' dealership so they could have just put it on a priority repair and kept their stock, but they chose to look after me.
So I'm glad I didn't buy from another country or eBay.
In fact, if I had done that I would have settled for a 400D in my ignorance, but after handling everything in the shop (this is so important) then going away to research, I became the proud owner of a 'proper' camera which also suited my style of work - something most research would fail to show up.