Weird. Maybe you have something weird with Python code interpretation by your PC. Do you play on windows or Linux? And which version? I need more details to check what might be the reason because no one else reported the problem like that.
I play on Windows and it has been happening on versions 4.0 and 5.0
No idea why. You don't give enough details. What happens just before, what is the outcome (back screen? any text? game quits?)
do you have a adio out put if not plug in head phones or somthing and try agin it 1 of the bugs i found b4
