startup issue

I installed DaVinci Resolve v14.0.1 (first time user) and have an issue on startup.
When Resolve starts I see the splash screen, then immediately see the message "DaVinci Resolve Welcome.exe has stopped working". If I select "Cancel" (twice), Resolve does open.

I don't find a "Welcome.exe" anywhere in the Resolve install directory. I tried uninstalling and re-installing, both time to the default install location (Program Files). Any suggestions would be appreciated.

Andy

If I open Resolve and ignore the "Welcome.exe" error, I can import a video and drag it into the source monitor window in the Edit page. If I hit the play icon the video plays for about 20 seconds, then Resolve crashes. I've not been able to get past this point to try any editing.

DaVinci Resolve v14.0.1.008
Windows 10 Home 64 bit
Intel i7 930
6 GB RAM / 1 TB hard drive
Radeon HD 5700 4840 MB

Any suggestions for either of these two issues?

Thanks,
Andy