Strange 'bump' in pedals when using clutch - please help.

[Dragonwind]

Tonight I noticed a very weird sensation when disengaging and reengaging the clutch (full travel). This occurs with or without the engine running. If you put you foot on the gas or brake pedal, and also use the clutch, when the clutch is almost all the way back up you feel a 'bump' like something is rubbing on the other pedals. The accelerator is more noticeable than the brake, but it is there.

I can't imagine what is causing this. Could it be the engine mount out of whack? It was fine yesterday and this morning.

Any thoughts?
Chris