Playing DVD problem

2 identical laptops.same dvd software

1 machine can play the dvd the other cannot. switched dvd drives around and same machine can play with either drive–other machine cannot play with either drive.

The dvd starts and output is green with some jumbled small colored squares.

Both machines have identical video adapters and settings. Both rdrives are set to region 3

Win 2k

Anyt ideas??

Sounds like one of the dvd playback codecs has become corrupt or you installled/overwritten it with another codec.

So I should reinstall the dvd player software??

Yup. I’d recommend removing all dvd playback software and conversion tools (such as tmpgenc) , reboot , reinstall playback software , reboot and check if the green blocks are still there.