Major Error Occuring

[MPowell1944]

Everytime I startup my map, I get the following error depicted in the attached image. When this occurs, I get the REPLACE ME texture surrounding my player in game, like a dark circle, where ever I go. The circle overlays the existing textures already on the map. This happens on my map only, and haven't messed with anything to cause it to do this. Even started a new map and it did it again, however, when I open a game level, it dosen't do it at all. Any help appreciated!

error (http://uploads.dodart.net/sandbox_error.jpg)

AMD XP 2500+ (2200ghz)
1024mb RAM DDR400
ChainTech GeForce4 ti4200

[MPowell1944]

Everytime I startup my map, I get the following error depicted in the attached image. When this occurs, I get the REPLACE ME texture surrounding my player in game, like a dark circle, where ever I go. The circle overlays the existing textures already on the map. This happens on my map only, and haven't messed with anything to cause it to do this. Even started a new map and it did it again, however, when I open a game level, it dosen't do it at all. Any help appreciated!

error (http://uploads.dodart.net/sandbox_error.jpg)

AMD XP 2500+ (2200ghz)
1024mb RAM DDR400
ChainTech GeForce4 ti4200

[Key-Node]

Means thats shader for shadow map fails to compile.
May be try to lower your settings