Print dialog box does not appears

Dear Draftsight Community,

I have recently activated a Draftsight Standard 2019 SP3 for Windows 10 Pro (64 bit) operating system. My big problem is that when i want to print (Ctrl + P or from menu) it happens nothing, the Print dialog box doesn't appears. I have tried with other .dwg files, and it happens the same. 

I have tried with draftsight example .dwg files and with those files the print dialog box appears. I installed / uninstalled the program several times but the problem has not been resolved.

Can you please help me with an advice, what should i do?

Thank you in advance.