Have had this message a few times in the past and always solved it, but this time it has me stumped. The message I get is: Code: Assertion failed! Line:149 Expression: i < ARRAY_SIZE I am not a C++ guru so not sure what the code is doing on that line, but it seems to be confirming the size of a specific table being passed. I have checked units, buildings and promotions and they are all under 255 entries so its not the usual offender. What I want to know (if someone can help) is what other tables are being checked through the code in FArray.h? Is there any way of telling or do I have to go through a wild goose chase by adding and removing tables in my mod!