Over the last week or so this has now happened 3 times whilst driving (twice in one day), when you depress the clutch to change gear, you hear a click/ping, the clutch pedal then loses all resistance and drops to the floor, you also cannot change gear.
I had someone check incase of a leak but they didn't find anything.
No point in driving it at the moment as it's stressful to put my foot on the clutch, awaiting the ping!!
http://www.rac.co.uk/forum/images/smilies/confused.png