Index: /AE/Installer/trunk/source/installer.cpp
===================================================================
--- /AE/Installer/trunk/source/installer.cpp	(revision 557)
+++ /AE/Installer/trunk/source/installer.cpp	(revision 558)
@@ -766,4 +766,6 @@
 						 bsl_itr++ ) {
 						if ( bsl_itr->path().extension() == ".bsl" ) {
+							if(exists("../GameDataFolder/IGMD/" + dir_itr->path().filename() + "/" + bsl_itr->path().filename()))
+								remove("../GameDataFolder/IGMD/" + dir_itr->path().filename() + "/" + bsl_itr->path().filename());
 							copy_file(bsl_itr->path(),  "../GameDataFolder/IGMD/" + dir_itr->path().filename() + "/" + bsl_itr->path().filename()); 
 						}