Crystal Reports , VS 2012, and Oracle Sessions

We are currently running into issues with Crystal Reports in Visual Studio 2012 while connection to Oracle. We have used the Oracle Server Connection to connect and have stayed away from OLE DB. I have upated to support pack 14 in hopes that it might help but it doesn't. Currently after we close and dispose of the reports used there are several connections that remain open for days. This is starting to cause issues. Please advise.