Hi, I got the free compiler DEV C++ and nothing compiled when I used NeHe''s tutorials. I followed all the advice numerous people have posted on this forum addressing that problem and I finally got it fixed. It compiles and EVERYTHING WORKS!!! Up to like lesson 8 or so that is. When I go into chapter 9 and beyond that have "random" functions that gets a random number or something to position the stars or particles or whatever they are; I get a DEV C++ compiler error that says either the line of code itself or the declaration of the random function is wrong, ambigous , or incorrect syntax but It won''t compile; There are SEVERAL lines like this and they are similair to this line below: particle[loop].fade=float(rand()%100)/1000.0f+0.003f; the error reads: like implicit delcaration of fuction int rand(...); what is wrong, other programs work just not the ones with the random codes. by address is bochen2k@yahoo.com help if you can. THANKS!!!

Implicit declaration means that rand has no function prototype. That should be in a header so try to include stdlib.h