Never had that. My only problem is the backlight lag (not a problem really), and the limitations of the processor. To play Pacman I have to use silent mode or phone locks up. I think it's more than the device can handle.
My 8330 on .131 can play Pacman. It hasn't locked up so far playing it. Granted, it was only for about 15 minutes.
With sound on it locks up after 1-3 minutes. So maybe I do have a reason to go to .131 after all. I need an excuse to delete voice dialing anyway.
Just so you know, after deleting VAD, you can't use Options > About to see your OS version. You will have to hold Alt+Lt shift, then press h from the home screen to get a Help screen with the info you are looking for.