Clutch Problem Please Help
Next I suggest checking the fluid in the reservoir. Is it low? Is it dark or discolored? If so, its time for a flush and refill. If not, then you can try bleeding the system to insure that the fluid hasn't simply been aerated. I suggest using a mighty-vac when bleeding the system: connecting to the bleeder off the slave initially; then connecting to the cap on the reservoir to insure you get all the air out. It can take some time so be patient.
If this doesn't help then its time to strart considering a slave and master replacement. There are tons of options available from the aftermarket. If you have any questions about this or anything else I have mentioned let me know. Thanks,

