Spacebar sends discs to another chapter

[PeteF3]

A weird problem has emerged without warning in WinDVD 10. Hitting the spacebar to pause a disc sends it to another chapter--which chapter varies from disc to disc but remains consistent within a disc. I can still click on the pause button, but...the spacebar shortcut key is supposed to be there for a reason. Any ideas on what's causing this?

[teknisyan]

Have you tried restarting the program? Does this happens when playing to video?

[PeteF3]

Have you tried restarting the program?

Computer's been rebooted. Didn't change anything.