HappyTinfoilCat

Cura 3.0.3 now starts and everything is fine, except, no graphics. No files are displayed. Cannot see what I am doing./H/H/H Correction IT WORKS!

Yes, several people have this issue. I can run 2.7.8 but 3.0.3 just blinks on the screen for a moment. I run Windows7-64bit as well. Deleting the directory doesn't fix it. See here: https://ultimaker.com/en/community/51597-cura-270-and-303-doesnt-start

Yep, similar issue. Win7-64bit. Cura 2.7.8 works fine but 3.0.3 just vanishes after a few seconds. The very last instant looks like this.