Cyberlink PowerDVD for Guest account

I have a PowerDVD that doesnt work with my guest account in XP. The message was "drive not responding". But when I use my Admin account it works perfectly well... Is there any way I can let other users play PowerDVD?

Thanks

you can let any standard user account use the program, the problem is that the Guest account is very restricted and is not able to interface with anything for security reasons.

I tried using a "Power user" account but still the same error of drive not responding.

Is there any other way?

Is the software installed on those user accounts? Can the dirve be used for anything at all?

I use PowerDVD 4.0, and i have just tried it with the guest account, as well as making another account, and it all woks fine, didn't change anything....