Are you suggesting that if I proceeded with the purchase I would somehow get the discount?
No. I'm not sure how it works, honestly, as I have licensed MC19 installed, so I can't easily check. If your current version of MC19 is 19.0.146, then try upgrading it to the current build and try again, though I wouldn't proceed if the checkout price shows the wrong amount. I don't know if the discount is tied to starting the process from more recent versions (build 146 is from way before this all was announced), but I'm guessing that it might be so.
Otherwise, you'll need to wait for someone who works for JRiver to respond. I do not.
this was my first MC pc version i have purchased mac version in the past
The Mac and Windows versions are licensed separately, so that would count as a full version. That should be the $39.98 price, then.
I said how: as instructed from within version .146 which IS the current stable version, btw.
I don't know what that error is, precisely. I'm guessing it has something to do with the web view. But I thought that installing the latest build would stand a good chance of fixing the issue. If you are having trouble, of any kind, the first step is
always to try the current build, which is always stickied to the top of this board. It isn't worth investigating or even discussing issues that have already been fixed. And, frankly, just reinstalling MC might fix it. That sounds like a DLL registration issue (like JRWeb.dll isn't working properly).
Alternatives are likely to be security software mucking up the IE engine on your PC, or blocking MC's attempts to use an embedded web view. You could also try disabling any security software, or temporarily uninstalling it altogether (disabling doesn't always disable these products, unfortunately).
There are a few issues with the current build in certain cases, which is why a newer one hasn't been moved to the regular download page. You can always re-downgrade later, though. It is worth trying, and if you're affected by one of the current format switching issues, then just reinstall 146 overtop afterwards.
Also, to answer another implied question in this thread, MC20 has not been released yet. Any licenses purchased since July 1 are MC20 and MC19 licenses. You can use the license with MC19 now, and once the first builds of MC20 are released in a few weeks, you can try them out. Bear in mind that early versions of MC20 are not likely to be as stable as MC19 (though we'll see, it depends what changes are made). These details are covered in JimH's posts stickied to the top of this board:
http://yabb.jriver.com/interact/index.php?topic=90654.0http://yabb.jriver.com/interact/index.php?topic=90664.0