DIAMOND

I have a problem with my corolla 1.6Si -94. Sometimes clutch doesn't work properly. When I push clutch pedal down and try to move car by lifting pedal up 10 millimeters it takes 100% contact. If I lift pedal full up and push it down again and lift it up clutch starts working normally. It does that every now and then. What can I do with that? I keep fluid level maximum and see that fluids are clean and there are no leaks anywhere. If you know what is wrong, please, mail me to: miika.tahtinen@luukku.com