I'm a member of a photography club and responsible for the computer and projection equipment. We have a PC running Windows XP SP3 that exhibits a strange audio problem that I've never seen or heard of before.
We often project audio-visual presentations (effectively slideshows set to music) produced with various software (Wings Platinum, PicturesToExe, ProShow Gold, etc.) and are experiencing a problem where the audio stops midway through an AV playback while the video continues playing. It is fairly erratic, affecting AVs produced with various applications (so that is probably not where to look) and even behaving differently with individual files. Sometimes a file might play correctly all the way through and at other times get the audio stopping during playback. Any AV played immediately after one where the audio stopped starts with normal audio and may or may not experience the problem itself. I haven't tried playing music (MP3s for instance) for a long period so don't know if that would also be affected. Movies in AVI format don't appear to be affected, only AV presentations packaged in EXE files.
Anyone seen something like this? Got any ideas on what I should look at for the cause? It is a fairly new computer and I think but am not sure that this started happening soon after we got it (there were no problems with our previous one). Could it be a hardware or firmware issue?