Perhaps it's just me, but upon launch, the first number I press on the (computer) keyboard doesn't register on the calculator. Second number and all others work fine after that.
Except for that it's a great calculator - one that I used to use daily as a land surveyor. Remembering window positioning would be nice, but for a first draft and free, I certainly don't mean to complain.
Thanks! Would gladly pay a reasonable price for a little more refined version with a more realistic image of the calculator, such as the also great HP simulators by RLM software.