Hello,

1) On your Mac go to your Hard drive, your username, library, preferences, and trash the Cubase Studio 4 folder. Now roomworks should appear.

2) On your PC make sure your CS4 install DVD is in the drive and open up the additional content folder, soundframe, and recopy the HalionOne Sound Bank folder by dragging it onto your C:/ drive. Then inside Cubase Studio 4 open up HalionOne and right click on it and choose "locate content" and choose HalionOne Sound Bank Folder.

What kind of noises are you getting? Can you please provide more detailed information?

Thank You,