Sarah,  

As politely as possible, I need to tell you that your response is completely out of touch with the actual issue with Time/QBO integration. The 'grey screen' reference is the fact that all data that should come over from Time to QBO doesn't integrate. The data from Time completely gets wiped out the minute you 'add' the time in QBO invoicing as the 'default' service is 'Hours' instead of the service tied to the invoice. If you would like me to show you the issue, please advise. I would gladly hop on a call with you and share.