Well I retraced your exact successful resolution and it did absolutely nothing for me--same exact error progression--so lucky you! In any case, I hope and trust that Intuit will be looking into this anomaly, as I cannot file my taxes by knowingly claiming and extra $300 deduction (LOL)! If Line 10b is left blank or I put in a zero, the error remains. If I put in 300, the error resolves but my taxes are incorrect--GO FIGURE! So Intuit, please HELP!!!!
