57Gregy
Were there any Yamaha driver updates you failed to get?
I'm taking a shot that the driver is not compatible with XP at all ... after all, that thing is now 14 years old or so ... however, I still use the XP-Pro version of XP on 3 of my machines, and have to tell you that the biggest problem? ... you got it ... the motherboard drivers for the audio are the stink, stunk, stank, stonk and stenk kind and in most cases if you take a look at them? ... they are the same and have never been updated or cleaned up, which is a serious issue for a lot of the more modern software that is more advanced than the old drivers and designs for these motherboards.
Note: Microsoft no longer supports any of the XP's, except the Professional versions ... because there are way too many of their network clients that still use XP-Pro.
I'm upgrading one computer to W7 and putting my big sound card on that new machine so I can get better results ... had an issue with the old drivers for a GTX motherboard not having enough capabilities and flexibilities to handle even such easy things as Audacity! You can get about it, eventually, but it is a total pain.
I might not be totally correct here, but I have given up doing some things until such a time as I have W7-Pro 64-bit on the machine ... tired of dealing with the driver issues and have to reboot every few minutes!