I was frustrated by the fact that after downloading the update that the download got stuck on updating usb drivers. I thought that I had lost the software and that it would no longer be of any use to me. I couldn't even cancel the download. I then restarted my computer and downloaded the software again after removing the usb dongle. That time it completed the download and the software works fine. I apologize for making a stupid comment about the software that turns out to be indeserved. The software is very good and it works well.

We are sorry to bring you such trouble, but before helping you, it's very kind of you to  tell us what difficulty did you came cross ?