Hi Henrik,

Great, many thanks ....simple enough & it works a treat!

Weirdly even though I imported all those values to Excel to check there are 256 entries (there are) - I got an error when I came to compile (stack overflow)....I took one entry out & then it compiled ok. Hey ho....but I just got rid of one of the multitude of 1s in there.

Many thanks....I've a bit more room to "breathe" in my bloaty program again