Sticky clutch pedal ?

[spaarky]

Anyone had experience with a sticky clutch pedal?

It's only just started, but when you take your foot off the clutch, the pedal only returns halfway. Can be flicked up to normal position quite easily, but is irritating. Seems more willing to come up all the way once you've driven a few miles. Have tried lubricating the pedal linkage etc, but no noticeable difference. Clutch works just fine, it's the pedal that's a worry.

On another car I'd be thinking clutch return spring, but I can't see one anywhere. Seriously hoping this is not the first symptom of a knackered clutch slave cylinder . . .