As detailed here:

http://www.gamesas.com/index.php?/topic/1239954-rage-tweak-guide-results-gameplay-video/page__p__18795511__fromsearch__1#entry18795511

I've already fixed my texture streaming (pop-in) problems. However, there's a small glitch that, though while not game breaking, still needs to be looked into.

The patch helped some but it was only with a certain amount of tweaking that I got the game to work for me. I'm happily playing it at the lowest settings possible. Jaggies aside, the game still looks beautiful compared to most games that appeared in the last three years or so.

The bug: sometimes when I enter another area (like for example one of those bandit bases), the screen only displays bands of colors. Reloading the game (thankfully the game autosaves every time you enter a new area) solves the problem.

Just posting it here so the devs can hopefully fix this in the next patch.

My specs:

CPU: Core 2 e7400 2.80Ghz
Motherboard: MSI P45 Neo3-FR
Memory: Kingston 2Gb DDR2-800
Videocard: 9800GT

OS: Windows XP 32-bit SP3
Drivers: Nvidia GeForce 285.38

Edit: grammar problem; changed "solve" to "solves."

I have the exact same problem...

Thanks for confirming this. I was afraid it was my PC's config.