Instead of posting a REALLY long thing...if community experts are watching these boards...and have sizeable experience with data corruption errors (the ones that go beyond rebuilds, basic trouble shooting, file doctor, etc)...could you reply?   I've already received priceless advice from local peers/proadvisors that focus on desktop.  I've already done the support calls with Intuit.  I'm looking to bounce some ideas off a few more expert sources as I'm trying to understand issues associated with desktop files as they grow larger and start having the errors that aren't easy fixes.  Are there any out there that would entertain some Q and A back and forth?  Intuit employees...I think the only contribution that would be helpful is if you really understand the nuts and bolts of the "data services" process.  Other than that...I'm more hoping to connect with experienced community members.  Thanks in advance.