If you're experiencing issues registering your account, first try the following:
1. Try accessing this file: storage.proboards.com/n/js/login.2d9d75d01bb80985379d.js (Are you able to open it? Do you receive any errors at all when trying to view it? If not, what does the console (F12, click on console tab and reload the page) say? Does it show any errors?)
2. Try a different browser. 3. Clear cookies, cache and history. 4. Try to disable your ad blocker.
Are you getting any error messages? At what point in the registration process are you having the issue? Do you have any browser extensions or addons that could be effecting whether or not the captcha loads (if that's where you're having an issue), do you have any antivirus/firewalls software installed that could be blocking the script from loading?
If none of these suggestions work, please post screenshots and/or any additional information either below or send it to me in a PM. Screenshots and detailed information (step by step and such) would help me greatly.