Basically I was just out driving went to change down from 3rd to 2nd and it wouldn't go in it was just like the whole gear was completely blocked and i was moving it into a wall. Anyway I carried on driving with this happening then stopped at the lights and I couldn't get 1st either so I had to pull off in second so I was revving high and the whole car smelt of clutch. Next 10 minutes of driving it never happened again, is this a sign of the clutch or gearbox going? Or what? Any ideas people? Ohh also 3rd felt a little stiffer then usual, while this was happening but 4th and 5th were perfectly fine.