Ogle sound problem ?

Hi !
Since a short time I've a problem on my Fedora Core 3 box.
I'm unable to play any DVD, being it on disk or on a DVD.
My system has 2 sounf cards : a VIA AC97 in my Motherboard's chipset 
wirred to the speakers in my screen, and a Sound Blaster PCI16 card 
wired to the stereo HIFI amp I own.
Since my FC3 upgrade, month ago, the VIA is known as DSP1 and the SB as 
DSP0... Go figure....
At that time I made a change, I don't remebber, to have Ogle play to the 
Via sound card.
Since last monday, I have this when I try to open any DVD :
#ogle
WARNING[dvd_gui]: add_keybinding(): No such action: 'SaveScreenshot'
WARNING[dvd_gui]: add_keybinding(): No such action: 'SaveScreenshotWithSPU'
libdvdread: Using libdvdcss version 1.2.8 for DVD access
libdvdread: Using libdvdcss version 1.2.8 for DVD access

libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x0000013c
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x00001a80
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00001ab2
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x00198291
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_0.VOB at 0x001982b7
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_1.VOB at 0x001982be
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_04_0.VOB at 0x001c73cf
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_04_1.VOB at 0x001c73d6
libdvdread: Elapsed time 0
libdvdread: Found 4 VTS's
libdvdread: Elapsed time 0
Xscreensaver not running.
FATAL[ogle_audio]: failed opening the oss audio driver at /dev/dsp1
ctrl: ipc_rmid: Invalid argument


I've deleted the root's .ogle and .oglerc, but to no avail. So I checked 
/usr/share/ogle/oglerc to find this :

?xml version="1.0"?>
<!DOCTYPE ogle_conf SYSTEM "/usr/share/ogle/ogle_conf.dtd">
<!-- This is the configuration file for ogle. (man oglerc(5)) -->
<ogle_conf>
   <dvd>
     <nav>
       <defaults>
         <DefaultMenuLanguage>en</DefaultMenuLanguage>
         <DefaultAudioLanguage>en</DefaultAudioLanguage>
         <DefaultSubtitleLanguage>en</DefaultSubtitleLanguage>
         <ParentalCountry>US</ParentalCountry>
         <ParentalLevel>15</ParentalLevel>
         <PlayerRegion>1</PlayerRegion>
       </defaults>
     </nav>
     <device>
       <path>/dev/dvd</path>
     </device>
   </dvd>
   <audio>
     <device>
       <driver>alsa</driver>
       <path>/dev/dsp1</path>
       <alsa>
         <name>default</name>
       </alsa>
     </device>
So what about OSS ? What may be wrong in my box ? How could I change 
things to make them work again ?
All help will be greatly appreciated !
TIA.
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