Anyone have a suggestion for some good backup software... cheap or free would be good.

I want to have daily backups made from my documents on the c drive and music from one external 500 gb drive to another external 500 gb drive. I am having problems with the windows task scheduler... says access is denied or something along those lines.

I either need to figure out how to get the windows backups to work, or use something different alltogether.

Any suggestions?

Thanks.

-David