Yankee Roman

Help! A few weeks or so ago I downloaded DD's terrain mods for Combat Mission: Beyond Overlord and they rocked. However, with the grass I found a problem: This For some reason, the grass was fine - sometimes - until some object would be in the center of view (or near the view), then some (if not all) the grass would switch to that texture, too. Also, with this High-Res building texture mod I downloaded I similar thing often happened, too (but not as much) I have an iMac (pre-Mac OSX) with 55,000k applied to Combat Mission) Is there anything I can do? God bless, Yankee Roman