What can I do if the preview sounds wrong?

The preview tool may give a bad quality feedback. But the generated custom backing track will always be well synchronised and noiseless. Before your first ordering you can try it with the free titles.
If you have some preview bugs, here how to solve them:

• Update your flash player
• Restart your browser, and eventually try with another browser.
• A clipped sound may be caused by a low system. Close your running softwares to keep only your browser open.
• If you still got a problem after this, try with another computer.