BleepingComputer.com: Dvd Drives Dissapeared & Nero Incd Won't Uninstall Fully

Hi..
I was having BIG problem with 'vista compatible' nero 8. So i uninstalled and tried nero 6.
No joy, so when i uninstalled nero 6, and restarted it said something like 'u have an invalid serial number for incd'.. but i had just uninstalled incd!
so i ignored it and installed nero 7.. but now i have no dvd players coming up on computer.. i managed to get into the 'hardware' and 'driver details' of both my dvd drives, it says there are 3 drivers in there..... and two are something to do with 'incd' !... hmm is there anyway i can get both drivers back online.. and also to get this nero worm 'incd' properly out of my computer?
Also, do u think nero 7 may work with vista?
Many thanks,Borat