Hi,
I download the latest version of Cisco packet tracer 7.3.1 win 32 bit as well as 64 bit.
but when i launch the application Black screen appeared and nothing happens.
then i disconnect internet and use PT but when i Click On PC the dialog box is also show nothing but black screen.
Then i decided to download the previous version 7.2.2 and its working fine.
Regards
Abhishek