DVD Player Not Loading Properly

[rhazeman]

I just installed Leopard with iLife 08 on my Powerbook G4 laptop. When I insert a DVD movie with Apple's DVD Player as default, this occur:

1) insert DVD movie
2) DVD Player (v 5.0.1) application starts to load (beach ball goes round and round)
3) Desktop application stalled! Mouse cursor can move around but none of the application responded to it (beach ball still goes round and round). Icon in Dock also stalled. Everything stalled!
4) Have to reboot before ejecting DVD out.

Any ideas? Please help.

Rizwan