Can confirm 2.6.15-25-686 being sluggish on my Sony VAIO VGN-FS295VP. Can't really remember how the breezy kernel was, used dapper throughout development. 2.6.15-23-686 is much faster for me. -- Thinkpad T43 2.6.15-23/25, system slow to use due to CPU spikes https://launchpad.net/bugs/50024