pic image is too big

I find a program compile in Jalv1 for a 16f84.
I programmed the pic without any problem.

Now, i have compile the same program using JalV2 with success (with the
good libraries and some modifications) but the result is that the pic
image is too big.
I don't understand why.

Here is the result after the compilation:

jal 2.4i (compiled Dec 1 2008)
0 errors, 0 warnings
Code area: 1093 of 1024 used
[Error] (kvf.jal) [Line 502] PIC image too big!
Data area: 45 of 68 used
Software stack available: 21 bytes
Hardware stack depth 4 of 8

Thank you.