Excellent. Simple enough in the end but I needed it!

This answer has not been rated.

Excellent. Gave more than one solution. Some clearer instructions on
how to use the software would have been great.

Thanks, that confirms what I thought.  I'd found some of those same
sites, but I'd hoped there might be some other alternative.

This answer has not been rated.

Thank you very much for your help. I was making it more difficult than
it had to be!!

palitoy-ga:  Another high-quality answer.

This answer has not been rated.

This answer has not been rated.

That was all that I needed and really fast as well. 
Thank you, and adding a 5 for a tip for your help!

This answer has not been rated.

Works like a charm.  Thank you very much. :)

Right on palitoy....excellent answer.  Very helpful!

great--thanks!

I appreciate the links--it helped me understand the "gradiant"--I keep
confusing it with just the numerical difference between points on the
graph--i.e, 1.5 for x and 8 for y.

Thanks, that's exactly what I was looking for. Great work, thanks again =).

Thank you for all the information from palitoy-ga, i will not make any
transaction with this company and also i hope to all person who want
to make any transaction with this company can read this forum.

Again Thank you very much.

aogem-ga

This answer has not been rated.

This answer has not been rated.

This answer has not been rated.

This answer has not been rated.

This answer has not been rated.

hello palitoy-ga thanks for the answer i would have spent a week
trying to work it out and still would not have,

This answer has not been rated.

Thank you.. Great job.

Hi Pal

You really are a great pal.

I've done A Virus Scan and everything's OK (allegedly).

Anyhow, I'm confident that I can sleep tonight.

It's been an enlightening experience and, of course, I shall now be more careful.

Many thanks for your help.

All the Best 

Bryan

This answer has not been rated.

right idea, but needed actual dates

Many thanks!

Thanks

thank you

This answer has not been rated.

palitoy-ga:  Your answer appears to work just as stated.  The
presentation of your answer was very clear, which will benefit me as
well.  Sorry for the delay in acknowledging your good work.

Spot on, thanks

This answer has not been rated.

Palitoy went out of his way to provide me with an exceptional answer. 
I really appreciate his kind help.

Amazing communication, great code, great "Google Answers" experience !!

This answer has not been rated.

This answer has not been rated.

This answer has not been rated.

good quality thorough research

Good answer - I had found the anicdotal evidence (reams of it) myself,
but had been unable to find actual evidence.

The only reason this is 4* not 5* is that your main point of reference
is wikipedia; which I understand is written by slf-proclaimd "experts"
from amongsed the public, and therefore /may/ not always be 100% -
hoowever the answer sounds authorotive enough and will certainly do me
- thanx for the quick responce.

This answer has not been rated.