I am sorry that your question has gone unanswered for so long. I will do my best to answer your question. I may not have your exact keyboard, but mine also has the special "quick launch" buttons. In figuring out how it works on my computer, I may be able to figure out how it works on yours.
First, I had Task Manager open on my other monitor to see which application is launched when I press my E-Mail button. The name of the file was MailClnt.exe. I then went into my registry and did a find for that file. After seeing the entries, nearly all of them were IE plug-ins, not associated with the keyboard command.
hmmmmm Note: If you are curious about how it would look on your computer, please post back, and I will provide you with directions. Looking
at the registry will not cause any harm, but changing
Then, I tried to take a look at a hardware/software connection. This type of connection is usually associated with a driver. I went to Control Panel and double-clicked System. Under the hardware tab, I clicked Device Manager, and opened up keyboards, right-clicked keyboard and selected properties. There was nothing unusual, associated with the driver that would lead me to believe that a setting could be changed to make any changes to my E-Mail button.
(ok maybe I need to stop scratching my head. I might start liking it
The only alternative that I can think of at this time is to d/l a key mapping program. I would rather try them out on my computer before I recommend one to be used. When I have found it, I will provide it in the next message.
We are all curious like a cat. We wonder, we ask, we learn.
Please post back when a suggestion works, so that others may learn.