[SLE] Ogle DVD

I installed Ogle on my 8.1pro during the Lunar New Year holiday, tried KDE 3.1 too, it's nice :) I reinstalled to the stock KDE as I found that many apps are not avbl in 3.1 yet. :( I have quite a hard time with 8.1pro as it seem many broken issues here and there :(, though finally get it work to some extend, I 'm facing problem on using Ogle to play DVD. My hardware: P3-866 with 512 mb and Pioneer DVD. Similar problem in 8.0pro too, the playback is NOT smooth :(, the same hardware done well in windoz while playing DVD, so is there anything I can do to improve the performance? Thank you and wishing all Chinese a happy goat year. Dennis