[Performance Calculator in EFB Does Not Operate]

Good call.  Corrected the altimeter to in. and all in now fine.

[Performance Calculator in EFB Does Not Operate]

I am not versed in taking screenshots of pages from the game.  But hopefully you can see the EFB on the left side of this attachment.

[Performance Calculator in EFB Does Not Operate]

I have been flying the A310 for several weeks and thoroughly enjoy the model.  I have encountered a problem with the takeoff performance calculator, however.  Although I carefully enter all the values necessary to perform the calculation of my V speeds and flex temperature and the calculate button appears to light up, nothing happens when I click that button.  Any suggestions as to what I might be doing wrong or a fix if I've got it right?