You have all updates for Vista from that 1545 driver page? More than just IDT drivers. Bios is now A08? Only 1545 users know if that matters. Keep it in mind if nothing else works.
Have no idea but think I would update to SP2 and see what happens.http://social.answers.microsoft.com/Forums...e6-4f88c8138197
not same computer but Vista64bit, same idt audio chip and same error. He fixed it by driver update. You already done that.
OS is partly Dell with all their bundled programs so may be better to ask at their laptop forum http://en.community.dell.com/forums/3516.aspx
Perhaps an issue where you need to know all details of that particular model. Could be something unrelated to audio service/driver that trigger error.
What will not hurt is to type "cmd" in startmenu, rightclick and chose run as administrator. Then fire off "sfc /scannow" Checks system files for errors. http://www.bleepingcomputer.com/forums/t/43051/how-to-use-sfcexe-to-repair-system-files/
for xp but same thing. And of course issues...
Come to think of it also run chkdsk, cant find directions here so http://www.vistax64.com/tutorials/67612-ch...isk-chkdsk.html
If you post at Dell forum tell them you have done these 2 attempts to fix the unknown.
Edited by Bambo, 02 September 2009 - 06:20 PM.