Semi-Transparency Problem

A build I'm working on is causing some problems in windlight. One of the buildings has a lot of semi-transparent objects and as the users move away from it the prims gradually become solid (rather than see through). This has also been happening in the previous versions but I thought it was a widespread problem. Most people hadn't heard of it until I showed them the build.

In Windlight
============================
http://marunchak.co.uk/bugs/1.jpg
http://marunchak.co.uk/bugs/2.jpg
http://marunchak.co.uk/bugs/3.jpg
http://marunchak.co.uk/bugs/4.jpg
============================

In the normal viewer
============================
http://marunchak.co.uk/bugs/1a.jpg
http://marunchak.co.uk/bugs/2a.jpg
http://marunchak.co.uk/bugs/3a.jpg
http://marunchak.co.uk/bugs/4a.jpg
============================

I've tested this with a few people, a mix of nVidia and ATI gpus, and all seem to experience the same problem.


One more picture, I use it to show the problem with the noon setting in Windlight but since it also shows the transparency bug, may as well put it here.

http://marunchak.co.uk/bugs/Windlight_Contrast.jpg



Does this sound familiar to anybody?

Just wanted to point out that the new WL viewer is great, apart from the obvious black stripes. The transparency issue I was experiencing seems to have been improved but is still visible. I'll try to upload a video of it later.