I use Quicken 2015 Home & Business to manage our finances. One annoyance I encountered recently was that when I viewed the details for the mortgage account, the balance was listed correctly, but on the left side of the screen where the balances are listed for all accounts, the balance shown for the mortgage account under the Property section was wrong. The amount that was displayed was the amount shown for the current balance when I looked at the transaction display for the account plus the original balance when we purchased the house. The two balances had matched previously; I think the incorrect amount under the Property section of Accounts started appearing with an incorrect amount after I reconciled all of the transactions in the mortgage account. But even after I unchecked entries to make them unreconciled to see if that would eliminate the discrepancy, the discrepancy remained. And that discrepancy resulted in an incorrect equity being shown when I clicked on Equity when viewing the mortgage account. The equity was being shown as a negative value, i.e., Quicken was claiming I owed more on the house than the house was worth.
I exited from the program then restarted it, but the discrepancy remained. So I decided to backup the Quicken data file and then perform a repair operation. So I backed up our data by going to File, Backup and Restore, then Backup Quicken File. Then, to run a repair operation, I clicked on File then File Operations. From that option I could select Validate and Repair, but before I selected it, I noticed that now the amount shown for the balance owed on the mortgage was correct under Property in the listing of accounts. It seems that just performing the backup resulted in the discrepancy being resolved. I certainly didn't expect that to resolve the problem, but I was glad just doing that apparently resolved the problem. Quicken was also now showing a correct positive equity value based on what I had estimated for our home's current value minus what we still owed on the mortgage.