I've been trying to get radiant 1.4 to work properly on my laptop for a while now, but I keep running into a really annoying problem.
If I don't have my graphics drivers installed (clean xp install), the 3d view seems to work fine, if very laggy. However, once I install my graphics drivers(intel 965 chipset, latest drivers from the manufacturer), this is what my 3d view looks like:

Which is pretty much impossible to work with

Here's some shots of a couple basic brushes to give you an idea of what it does:
http://img73.imageshack.us/img73/794/problem2rs0.jpg <<- looks normal when no brush is touching the edges of the 3d view.
http://img73.imageshack.us/img73/198/problem3sx0.jpg <<- As soon as a brush is not entirely displayed in the 3d window, some/all of its sides show in wireframe mode.
The 3d view is set to display bilinear mipmap, not wireframe.
I've tried to get 1.5 to work, but it crashes at startup. Also, I don't really want to use 1.5

Any ideas on how to fix this?