oceanis

I have been running oceanis for windows 7 starter without problems on my Samsung netbook for a year and a half. My parents bought an acer netbook today to take on holiday. It had been a while so I checked out the install guide on this site and downloaded with the link. I extracted the zip contents to the desktop as instructed. As the progress bar got about halfway through installing I was presented with an error message:

C:\Program Files\Oceanis\SystemSetting\WallpaperAgent.exe
An error occurred while trying to replace theexisting file:
DeleteFile failed; code 5.
Access is denied.
Click Retry to try again, Ignore to skip this file (not recommended), or
Abort to cancel installation.

Can you help? I dont often use forums and im not sure how to locate my post or answer so could you also explain that in an e-mail aswell at all?

boomy