xine Problem

[Lawrence Tilly]

I am having a strange behaviour in Xine which I hope someone here can
help point me around to a solution.

I have two machines, a laptop with a DVD player / CD burner drive and
a desktop with a new HP DVD burner.  Both are running Suse 9.3 and
both are running the exact same build of xine and all its related
files.  I know this because I downloaded them initially onto the
laptop and then scp'd them onto the desktop.

The laptop config has no problem at all playing DVD movies.  When I
first installed the DVD burner into the desktop a couple weeks ago I
had no problem playing movies ( watched Matrix and Two Towers over the
course of a couple days working on projects ).  Now "something" is not
working and I haven't been able to figure it out.

Last night I was trying to get some work done in the office and wanted
to throw in a movie for background.  I got some box pop up asking if I
wanted to open it with some other application. I hadn't gotten that
before and didn't pay a lot of attention to what app it was, I just
clicked "don't ask again" and hit cancel.  Then I opened xine got the
initial DVD screens, and tried to  play the movie, but got immediate
failure:  dialog saying:

The source can't be read.  Maybe you don't have enough rights for
this, or source doesn't contain data ( Error reading NAV packet ).

If I ran xine from the command line I also get a message saying
something like this:
    libdvdread: Can't seek to block 230384

I threw in a couple more to test with and some allowed me to view the
first few chapters of the movie.  Then, the same failure ( dialog box
and "can't seek" message ).  These tests included DVD's I've watched
previously in this machine.

Today, I compared the mount and permissions of the DVD drives between
the desktop and laptop and they appear identical.  After some
non-successful google time on this problem, I finally tried to remove
all the xine packages I installed and reinstall them.  It appeared to
go fine but now as soon as I load any DVD I'm getting an error as soon
as I try to access it:

libdvdread: Using libdvdcss version 1.2.8 for DVD access
libdvdread: Can't seek to block 540405
libdvdread: Invalid IFO for title 2 (VTS_02_0.IFO).

Any suggestions??????
-Lawrence