HI I had the same problem with freezer. If the freezer is working then it should be alright. The fridge gets its coldness from the freezer. The cold air is pushed up from the freezer to the fridge compartment via a fan found at the back towards the bottom. The air is passed through the two vents located by the veg draw.
This problem can be sorted. Just turn it off for 48 hrs and switch back on. It will work fine after that promise.
Neil Evans, January 2008