Hiwin CAD Models

I have tried a few of the Hiwin websites to download 3D models for ball screws and linear rails, and they worked a few weeks ago, but now nothing happens when i click 'download'.
I go throught the configurator and select the file type ( tried a few difference ones ) but all to no avail.
Anybody else having the same problem?
Anybody know of a 'easy' place to get Hiwin 3D models from?

I like hiwin ( if I can get it work ) as you can select the rail and/or ballscrew lengths you need.

Steve.