Soundeasy beginner!!!

[Dryseals]

OK I just bought the latest SE package and I'm having initial problems. I'm trying to do the T/S measurements and have read the manual and the extra files. But something is not working.

Step one: enter Re and diameter.
Step two: calibrate, ends up looking great very near 1
Step three: in impeadance box, run MLS
Step four: IR->Z ( or what ever it is), a nice looking curve shows up, I tried many speakers and the curve looks great, meets manufacturers curves.
Step five: go to T/S tab, get current Zin, do basic T/S and the numbers arrrive, but I get this message
"unable to calculate Xr, Kr"
Can't find info on it so proceed on
Step six: Using added mass, mass entered in box, swap back to MLS screen.
Step seven: run MLS (impeadance box), hear sound, and then nice beautiful curve generates ( after clicking IR->Z)
The new curve shows up as expected.
Step Eight: Back to T/S tab, click "get current Z" from modified box. Click the delta mass button ( or what ever the name is and) I get the same error "unable to calculate Xr, Kr" and nothing happens.

What am I doing wrong, the pdf manual does not seem to address what I am doing, am I doing it wrong?????

Some one please help, I'm working 7/12s and trying to keep my sainity by spending time in the shop, hoping this software will relax me, but instead............

Thanks

[soongsc]

Try the SE user group at yahoo. I've been posting lots of questions that nobody can answer, and some even get upset for whatever reason I don't know.