RenPy randomly crashes.

[RedJ]

I am trying to create a small Visual Novel for NaNoReMo using RenPy, but while testing out the parts that I've written so far it keeps crashing at random moments:

-It crashes at different moments, I have seen no pattern. It might crash very quick, or it might take a few minutes before it crashes. It simply stops displaying any more text, stopping in the middle of a word or sentence, and then hangs, forcing me to close it trough the Task Manager.

errors.txt and traceback.txt do not get updated when this problem occurs.


I am using:
Windows-Vista-6.0.6001-SP1
Ren'Py 6.13.8.1675

I did not change much of the standard settings of RenPy: I just made a new game to see if the problem would still happen:
My settings are:
-Using the Diamond+Colorblind skin.
-I am using NVL to display what is said.
-I have only changed one line in the options.rpy, the "config.default_text_cps = 0" to "config.default_text_cps = 40"

Can anybody tell me what is going on, and how I might be able to fix this problem?

[RedJ]

Please, somebody? ^.^"

[sciencewarrior]

I have no idea what could be wrong, but...
Have you tried running in software rendering mode?
Do you have the same problem with other Ren'py games?
Do you see a spike in CPU usage when the game locks?
Did you check the OS's event log?