This occurs if the spring button is held for more than a couple of seconds, but only appears to affect player one's controller. November will fix the blighter.
"Stutter run issue will be fixed in November," PES team leader Jon Murphy. A workaround (at least for solo play) is to sign out of user profiles using controller one and then sign back in with controller two. The PES 2012 demo had this glitch.
PES 2012's "stutter run issue" to get fix in November update
19 October 2011 | By Simon Priest