On some laptops (like mine) VRMLview crashes with the cryptic message: "Illegal instruction". In this case, please rename "vrmlview" to "vrmlview.bin" (eg. mv /usr/local/bin/vrmlview /usr/local/bin/vrmlview.bin) and use the following wrapper script. Save it on the same place as the original binary (eg. /usr/local/bin/vrmlview).
If you prefer the VRML-browser to start after you click one of the models, define a new "MIME-type" in your web browser. If you use Mozilla, click "Preferences" under the "Edit" menu. Then choose the item "Helper Applications" under "Navigator" (you may need to double click the word "Navigator" to open the submenu). Then click "New Type" on the right. In the pop-up window you enter the following.
Then click "OK" and restart Mozilla.
In Netscape 4.79 choose "Edit->Preferences". Then open the menu "Navigator" by doubleclicking the arrow, en choose "Applications". Click "New..." and enter:
Select "Use this MIME as the outgoing default for these extensions". Select "Application" and enter de location of vrmlview, then a space and %s, for example /usr/local/bin/vrmlview %s.