Help - How to fix transparent polygons

[Poop]

I have a problem with some old racing maps where the polygons are invisible in game. When I open the map up with polyworks, this is what it looks like:

http://img186.imageshack.us/img186/4772/abcci5.jpg

Toumaz said this has something to do with the new transparent polygons feature, where some older maps are saved as being completely transparent for some reason. How do I fix this?

[GluLm]

You can't fix this unless you recompile the map with the right transparency set for all polygons.
I have something like 600 maps to sort because of this issue. Needless to say it will take a f****** while.

[Poop]

How do you do it though?

[Horve]

ctrl+a selects everything, if you turn off the display of scenery, then ctrl+a selects all polygons.
select all polygons.
in the properties window there is a box that says opacity: #%
change the # to 100 and you will have no transparent polygons.
compile and save.

[Poop]

Thank you.