Thank you for taking the time to report this issue to the Community, although I apologize that you have not yet received a response.
If you are still needing assistance with Quicken closing, please take a moment and review the information available here, and post back to let us know what version and release of Quicken you are using.
Please also let us know a little more information on what exactly is happening in Quicken. Are you entering an investment transaction when the close occurs? Trying to click on the "Investing" tab to view the portfolio details?
The more information you can provide regarding this issue will help the Community to better understand and assist.