Hi,
You might ask "why don't I test it" but to be honest setting up an XP system with Analog+ and dual trackballs would be quite time consuming at the moment. In theory dual trackballs with USB Opti-PAC should work in XP with the new version.
If anyone can confirm this it would be great. Also, if anyone currently has a serial opti-PAC dual trackball setup (with DOS) and wants to try USB with XP, I'll send a USB upgrade kit free of charge.
Thanks,
Andy