Ahh...I did not know you could not do data as well.
Powerpoint presentations on CD; wow, with all that room you must have a lot to present.
Anyhow, in order to burn anything to a CD it has to be converted. I used Nero to burn all my data stuff but your matter is different.
It sounds to me that you have a software conflicting issue here.
I use System Mechanic from islo for a lot of my computer needs. You should have some sort of utility program anyway and this program rocks.
If you get this program (free full trial program download) I would the go to the Maintain section and click PC Wizard before you do anything.
This will automatically fix, remove, and optimize your computer. It takes awhile depending on the size of your computer.
Restart your computer when its done. Let it do its job and viola!
I love this program.
Check to see if you have the same problems. If you do, uninstall Roxio using its unistall. System Mechanic will uninstall the program completely if you want.
Remember Roxio embeds itself in most of your programs so using System Mech to uninstall my cause bad things.
When reloading Roxio, and if you love it, make sure you check if it is the controlling player in everything.
Sorry for the long post.
Let us know,
Your Hardware Guide.