I know this has been discussed many times in many places. I'm thinking it needs to be in one place so that someone in the Parallels organization will see how many of us are frustrated with this issue. But there is yet to be an answer that works. I have been programing building automation systems for 30 years and they tend to use Windows based software exclusively. I have seen the forum admins just reply with "use the Fn+ whatever key, see it works" more times than I can imagine. It DOESN"T work, it causes a break in my train of thought when I have to remember a second key press to do something I have done for years. And I do everything else (docs, drawings, spreadsheets, etc) on the Mac side, so I want my function keys in the Mac apps to behave the way they should when in those applications. I have been using Parallels on my Mac to run windows since the Macs went to Intel processors, I have gone from P3 to P5 and now deciding whether to go to P6 or jump to another program altogether (and I'm not alone here). In that whole time the constant complaint from EVERYONE seems to be why can't Parallels map the normal Mac functions keys to the normal Windows functions keys without resorting to expensive and troublesome outside software. What is the problem with having the functions keys do Windows stuff when in a Windows program and Mac stuff when in a Mac application????? Why do I have to choose one over the other??? If you are going to use the argument "some Mac people prefer their Mac keys" then make it an option check in the preferences. Isn't that why we are running Parallels to start with??? So we can run Windows on our Mac hardware and have the best of both?? So what is the problem? You remap the other keys, why not the function keys. And please don't take six months to answer, there are several of these threads where there was seriously six months between the post and the less than helpful "use the fn+" answer replied.