Hello:
I use microsoft excel and develop large models (e. g. one is 3.6 megs) using
lots of excel functions (stdev, correl, min, rand, norminv, max, product,
sumproduct, etc). The models perform many multiplications and divisions. I
also use solver. I have found that some of my models take as long as 20-30
seconds just to recalculate. When I try to use solver on some of my models,
it times out before reaching a solution.

My present pc is a hp pavillion dv-1000 laptop with upgraded memory runniing
windows xp home edition and excel 2003. I am considering buying a new laptop
with a dual core processor.

I am open to any input regarding improving the performance of my existing
computer or what features to look for in a new computer.

Thanks in advance for your help.

Mike