Rhino 6 Crashes upon start up - Help!

I can’t open rhino with out it crashing. I’ve uninstalled it and the new install crashes. Please help as i have a client presentation today! Thanks David!

Which version do you have installed?

rhino_en-us_6.14.19127.17141, this is what i downloaded today to replace the version i uninstalled

The previous build i uninstalled was rhino_en-us_6.16.19155.12341

I also tried to start it in safe mode with no luck.

Was 6.16 running on your machine without crashing?
Are you sending in crash reports?