ezquake map problems (players blending into the walls)

[klown]

My ezquake is funky. Some maps like 2fort5r have black lines running through the map and when players get too close to the wall they blend in and disappear.... Heres a picture of the black lines. Is it a simple fix or a setting that might need tweaked? Any help would be great. Thanks!

[klown]

[klown]

Bueller? Bueller? I guess nobody has ever seen this problem....