Hi there! I understand you're experiencing an issue where your computer screen freezes when you try to log in to your myCigna account. Could you let me know if this happens only when using a particular browser or if it's happening with any browser? Also, have you tried any steps so far to resolve this?

In the meantime, let's start with some simple troubleshooting steps:

1. Clear Browser Cache and Cookies: Sometimes, stored data can cause conflicts. Clear your browser’s cache and cookies, then restart the browser and try logging in again.

2. Try a Different Browser: Since your device uses WebKit (which suggests a browser like Safari or a WebKit-based browser) on Windows 10, try accessing myCigna using another browser like Chrome or Firefox.

3. Disable Browser Extensions: Some extensions can interfere with web pages. Temporarily disable any extensions or add-ons and see if the login works.

4. Check for System Updates: Make sure your Windows 10 is up to date; also, verify that your browser is the latest version.

5. Restart Your Computer: Sometimes a simple reboot can clear temporary issues that cause freezing.

If after these steps the screen still freezes and nothing happens when attempting login, it might be worth checking if there are any ongoing outages or issues with myCigna services, as there have been reports of temporary unavailability sometimes.

Let me know how these steps go, and if the problem continues, we can dig deeper or explore other solutions. Are you comfortable trying these and telling me what you find?