Recently I purchased a gravograph m40 abc. The machine appears to work fine but I do not have the dongle. I was able to get the software downloaded on to my computer no problem (gravostyle 8 Discovery) but I am told I will need to track down the dongle to be able to use it at all. Or purchase the software again essentially. Is there anyone with any advice as to other software I could look at to operate the machine or is it only compatible with their gravograph software? Thank you in advance for any help on this I am very new to these machines.