Hello:

The Htmemb (membrane height) input keyword is not active in the PBEQ module, although it is listed as an input parameter.

Rather the HEAD keyword is active instead. I tried the HEAD keyword with solve, and it works. Htmemb does not work.

The reason for this appears to be the following.

In the file ~c35b2/source/misc/pbeq.srs (or ~c34b2/source/misc/pbeq.src), there is a line

c
c Stuff for Membrane
c ==================
.
.
.

c thickness of headgroup region
HTMEMB = GTRMF(COMLYN,COMLEN,'HEAD',ZERO)

which probably should be modified to something like

HTMEMB = GTRMF(COMLYN,COMLEN,'HTME',ZERO)

Regards,

Angelo