I've never ran virtual machine so I couldn't tell you if that's your problem.. But I experienced the same thing with my INPA (flashing dots on the left). I realized those mean absolutely nothing so don't worry about those.
Try setting your latency to 1 and make sure your port is set to COM1.
Also make sure you ran the obd.exe file or whatever in the hardware folder (I think)
Good luck brotha
Das it mane