Hi delayedinsanity,

I initialized the 2 arrays as per Your first suggestion and it solved the problem right away.

I guess that somehow I must have used this variables somewhere back (I did not go and check...) because there are a lot of includes and this subroutine was also an include itself.

I think the most important here is that the problem is solved.

I appreciated Your help. Thank You.
pipesportugal