2009 Ford Focus standard transmission problem

We have a 2009 Ford Focus with 72, 000 miles and the clutch just started to give us trouble. If the car is cold, it is impossible to shift the car. Once it warms up, it shifts like there is no problem. It seems to be a problem that developed quickly in the last two weeks. We read a post on the web from another Ford owner who had his clutch replaced and six months later was having the same problem. Has anyone else had a similar problem, but with a favorable resolution?