Hi, I'm quit new to using excel (07) but have so far been very impressed by
both it's features and it's ease of use - However I have stumbled upon a
problem that I cannot get around - PLEASE help me if you can...

I have a formula that returns a numeric value to a specific cell, Say A1,
this number will always be in the range of 0 to 1,000. A number of different
variables influence what the returned value is and this value changes
approximately 5 times per second. I want to be able to show the highest and
lowest value achieved in cells B1 (highest) and B2 (lowest) and have these
two cells both start out at 0 but auto update as a new high or low is
returned in A1

Any ideas on how I can achieve this or where I can go to find an answer
would be great.

Many Thanks,

Mike.