I bought a copy last summer and find it useful, but recently when I got to page 36 I find that the running totals are broken for a page. They work correctly up to page 34 and then continue correctly from page 38. Anything entered on page 36 (flights 33 - 40) just gets ignored.
I emailed Parhelion asking if this (and another couple of minor issues) could be corrected and a new PDF issued, but that was a few weeks ago and also seems to be ignored. I sent it to two email addresses I have for them.
A good logbook but customer service is well below what I would expect for a $29.00 dollar purchase. 