quickbooks 2012 not responding windows 8.1Currently running Quickbooks Pro 2012 on windows 8.1. I am able to open Quickbooks and work with my company file but if i walk away for a while the application locks up and displays "Not Responding" at the top. The only way to get out of quickbooks is to close the program and "force" it to stop. Then I have to go into Task manager and kill/stop the "Intuit Personal Database Manager" process. If i do not kill that process, I cannot restart Quickbooks.
After I do all of this I am able to restart Quickbooks and work again unless I walk away from my computer for a few minutes. I am using Quickbooks in single-user mode. I have tried opening up the firewall ports as indicated in "http://support.quickbooks.intuit.com/support/articles/SLN41458" but this did not help.
Thanks in advance for the help.