I tried re-installing LOMAC several times along with installing the patches and I still get the same problem. At the loading screen when the loading bar indicator almost reaches the end my screen will suddenly down size and go black followed by an error message "LockOn.exe has experianced a problem blah blah blah." In the details report it states the file "Edterrain.dll" to be the area of concern? I looked every where for any info concerning this issue and have yet found anything to be of any help. My Sys. specs: Win XP Home Edition SP2, AMD Athlon XP 2200+, 1.80 GHz, 768 MB of DDR RAM, ATI 128 MB Radeon 9000 Pro AGP with driver version 6.14.10.6546NovakTRD@aol.com

I have the exact same problem, sometimes the missions wont load, sometimes lomac will crash while during the mission. details say its a edterrain.dll issue. Please help

I also had similar problem. Error said something about renderer.dll or something like that. It was only when in options 16bit was selected, but when I change it to 32bit, everything was working. So i suggest you to try experimenting with the options of graphic, in your case something with textures, try change it from low to high and something like that.