If it works in Troubleshooting Mode, and you don't have any plugins installed (which you don't appear to), that would point to some sort of problem with your graphics driver. See if you can update it, and make sure you're running the latest version of Windows.
Have you used Zotero on this computer before?
Does it work in Troubleshooting Mode (Help → "Restart in Troubleshooting Mode…”)?
Yes. it can work well in Troubleshooting Mode.