Had to nip out this morning and I noticed it was hard to get into gear. Had to pump the clutch a bit to finally get into gear, and then it was ok for a while. Since coming home from work I've been out again and it's done the same thing, only a bit worse. It's never done this before today and I am concerned. The clutch isn't slipping at all, even under load. But on one occasion I depressed the clutch pedal and it didn't fully return when I released it. Could this be a problem with the hydraulic cylinders? I hope it's not the clutch itself? Anybody any idea what could cause this?