Given the tax liability and estimated payments shown below:

I think I just owe the first quarter's underpayment tax (45 days), since it is made up from the second quarter. But proconnect calculated as below, and I think it is very wrong. How do you think? This should be a support issue, but I am afraid it cannot be resolved during the support session and they refused to open a case, so I think you need to click the link below to support my idea to have a case opened, so the issue can be escalated.