Hello, Maybe this should be in the Audio & Video Section, but I think my problem is software related. My PC has a BD/HD/DVD RW and DVD ROM and is connected to the following: Display 1: LG 17" 787LE with Audio 1: Altec Lancing Model #251 5.1 PC spkrs via blk/gold/brown 3.5 mm jacks Display 2: Sony 42" HD LCD RPTV (HDMI to DVI) with Audio 2: Sony Home Theatre 5.1 via optical digital (SPDIF) Using the (on-board) Realtek ALC888 and the Realtek HD Audio Manager I was able to play a BluRay on Power DVD on the Sony with audio from the HT while at the same time I can surf or play games at the monitor with separate audio from the PC spkrs. The TV itself even had a separate (3rd) stream of audio. I know this is possible as I had the set-up going in Vista Home Premium. Sadly, because of GPU issues (I have a Sapphire ATI Radeon 4850) I had to abandon this set-up in Vista and re-build it in XP Home. Sadder stil, is the fact that I can't get the same set-up to work. The XP Realtek HD Audio Mgr software is just messed up...it doesn't keep its settings, there's no audio via HDMI at all (to TV spkrs), I can't get it to multistream and I'm unable to set-up the 3 sets of spkrs separately. When I do a 5.1 spkr test, the audio samples are generated from a mix of the HT front spkrs and PC fr+rr spkrs. In addition, the Power DVD software in XP is just as messed up...again, the audio settings don't remain and the configuration tabs and options are ? ? ? For example, I had set the Rltk HDAud Mgr to "HD Audio 2nd Output" (HT via SPDIF). Then opened PowerDVD and in the Audio Tab set it to SPDIF. Placed a BluRay in drive and pressed play ---> Got video no prob..but No Sound AT ALL. So I checked the Power DVD settings and the HD DVD Tab was gone and the "Use SPDIF" option was also gone from the Audio Tab. So then I checked the Rltk HD Aud Mgr. It was at HD Aud 2nd Out so I did a spkr check and the 5.1 spkr icons scrolling on the screen corresponded to my frLHT-frRHT-frLPC-frRPC-rrLPC-rrRPC spkrs. WTF! So then I tried it with an HD DVD ---> got video...no sound again. This time the HD DVD Tab was still there but the first 2 options were now unavailable. The Audio Tab was again missing the SPDIF option. THEN I tried it with a regular DVD and it worked perfectly fine. Video and audio from the HT were in place. BUT...when I clicked on the Rltk Aud Mgr to enable the PC spkrs for another app the SPDIF audio to the HT would just stop. Is it me?...Or is it the software?...Or what?! This is baffling...any help, suggestions, info, solutions would be truly appreciated. Thanks!