Acronis 11 for XP Pro backup - verification fails

Running XP Pro with current updates with 1 yr old Dell 410.

Acronis v11 will do a complete backup and report it succeeded but when I add
the qualifier to verify, it always reports it failed?

I'm unsure if I'm getting a good backup when relying on the backup without
the verification process.

Any advice?

Could it be the drive I'm using to back up to that is the problem. It is a
USB drive. It is the same drive that I get the backup succeeded message when
I use Acronis without the verification. This makes me nervous.

I'd thought to buy the Rebit backup software so I'd have two chances to have
a backup that would work following a disk failure but just hate to have to
purchase another backup program.

Mary