My "+ New" button with Quickbooks Online does not work. A blank window opens. Please advise?

Hi there, huy-torque. 

I'll gladly help you with your issue with the +New button showing a blank window in QuickBooks Online (QBO).

Since it shows a blank window when accessing it, let's perform some troubleshooting steps to determine if the problem lies within your browser. Please know that cache-induced browsers affect the functionality and performance of the program. To begin, try accessing your account using an incognito or private browser. Here are the shortcut keys for quick access:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Shift + N

Then, check if the +New button will show the options. If that works, you can clear your browser's cache to remove them and start a clean slate. Also, you can use other supported browsers to access your QuickBooks account. 

Moreover, you have the option to visit these articles that guide you in creating various types of sales forms within the program:

• Create invoices in QuickBooks Online.
• Create and send estimates in QuickBooks Online.
• Create sales receipts in QuickBooks Online.

Fill me in if you have any further inquiries or issues regarding navigating QuickBooks by clicking the Reply button. I'm here and prepared to assist you. Have a great day!