ASCO (A SPICE Circuit Optimizer)

Hello:
I have been using ASCO with QUCS successfully in many simulations, but keep running into a tough problem when optimizing microstrip dimensions (and sometimes transmission line dimensions). The error message reads:

"asco.c Value is zero when using DE in emulated local mode."

Asco will then terminate.

OS : Puppy Linux 4.0 with qucs-0-0-14.pet installed. Asco was installed with qucs in same /usr/local/bin directory. See my site:

http://wn2a73.googlepages.com/qucs.html

For all other qucs components that I have used, no optimizer problems.
Works very well with everything else I have seen.

Could someone provide me with some direction?

Thank You!!!