On the way home from a ski trip in Colorado a few days ago, after driving with the cruise control at ~75 for hours, I got into town, had to downshift, and the clutch pedal went straight to the floor and stayed there. After shifting, I managed to re-engage the clutch by slipping my toes underneath and pulling it up. The couple of stoplights on between the interstate and home were tricky at first, having to put one foot on top of the clutch and one foot below in order to keep it from popping up and stalling. As the minutes went by, though, the clutch pedal lost its tendency to stick to the floor and regained normal movement, except that now the friction point is almost all the way to the floor rather than more than halfway out as it has always been.<p>This normal function with the new friction point has not changed in a couple of subsequent test drives. Initially I thought the clutch was gone, but it's as grabby as ever and holds very tightly at full boost in all gears. So, the clutch itself is in good shape but it seems that something has gone amiss with the hydraulic linkage, if only in adjustment. I've never had any trouble with it, after 40k+ miles of ownership, and it's driven pretty lightly from a clutch standpoint because it's primarily my travel car.<p>Any guesses as to what went wrong and/or how to fix it?