IFI loader help!

[ShadowKnight]

Ok, so i've been trying to download code to the EDUbot for about 2 weeks, but it doesn't work. When I tried to download, a box would pop up saying:

ERROR '6'
Overflow

I would also get back a file called ERROR.MCP, filled with a buncha hex numbers. And the program light would stay yellow. I have IFI_Loader v. 1.0.7 and the memory isn't a problem, the .map file says 41% is used.

I tried copying my code into the default code function by function, and it starts messing up when i get to my absolute value function. For some reason, this works:

short long abs(short long num)
{
return num;
}

but this doesn't:

short long abs(short long num)
{
if (num < 0) return -num;
else return num;
}


Help me please!