re pool my limited knowledge..... I always use a capital in a variable so that when I have finished typing in lower case the first letter changes to a capital which then tells me I am using a proper variable (not just one in my head). I tend to have more frustration than knowledge (the thought of spending hours reading books just for 1 tidbit of information). That is why I have put off this job for so long. The analytical stuff takes most of my time and I can just get it done although I know my code is crap - it is easier just to get a faster processor and more memory.

Ta,
Martin