It is unclear whether the problem will impact his playing status.
The sources said an off-field incident involving Bolden occurred Friday evening. Bolden practiced with the team Saturday and took part in a squad meeting late Saturday afternoon.
Though he saw little playing time in the final few games of the regular season, Bolden's importance to the program may well have been magnified when starting QB Matt McGloin was injured during a scuffle with teammate Curtis Drake following practice Saturday. McGloin was hospitalized and released after suffering what the Harrisburg Patriot-News reported as a seizure and possible concussion.
Penn State faces Houston in the TicketCity Bowl in Dallas Jan. 2
A sophomore, Bolden completed 46 of 109 passes for 548 yards, one touchdown and four interceptions in the regular season. He started the first seven games before giving way to McGloin. Demoted to the second team, he only played in two of State's final five outings.
Penn State's third-team quarterback is walk-on Shane McGregor, who saw action in only one game last fall. The Lions have also used Drake and Bill Belton as Wildcat QBs.
Redshirt freshman Paul Jones missed the entire 2011 season due to academic issues. It is not believed he will be eligible to play in the bowl.