Error Messages

[Iron Budokan]

I installed the game and got these error messages when I tried to play:

ps_1_x not supported in this version of the compiler

Data/Shaders/Interior Illumination/InteriorIlluminationP5.fx

Data/Shaders/Radar/PPIRadarP5.fx

Can anyone tell me what this means and how I might go about correcting it? I have a clean install with patch 1.1. Thank you!

[Iron Budokan]

With help I've figured out it's my card but I only have PCI slots. Would a Radeon X1300 work okay? I have the specs for that....

Thank you!