Petrus

In other words click on the box that says "Name a fair price" (after entering a number)? That does nothing, the box is not a live link.

I add an attachment to show the page where I land in following the link to find the update. Where do I click to from here to launch the update? The "Buy This" button is the only live thing there, but that does not seem to be it.

Daniel, Yes you're right, I got it to activate and then it recalculated OK. However when I looked again it had gone inactive again, this time hitting F5 repeatedly did nothing, so there is still something I do not understand. If you look at the screen dump in the attached Word doc, you can see when I right-click on the mixer, it shows "active" in the property window, yet in the MIX-005 window on the left is shows Status:Inactive.

Hi, Herewith the attachment. Thanks for the help. Petrus van Staden.

Hi, I have used Flowsheet Simulators before but I am a beginner in DWSim, so still getting used to its conventions. Two things I have noticed: 1. In the Reactions Manager I specify the following reaction, based on only compounds that appear in the database: Na2CO3.3NaHCO3 (sodium carbonate(2)) + 5HCl = 5NaCl + 4CO2 + 4H2O However the Reactions Manager does not accept the stoichiometry in this way although the reaction seems balanced on paper. It shows a small imbalance, and to get it to accept the...