Commented Unassigned: Hashing algorithm isn't FIPS Compliant [27501]

Our servers are set to require FIPS-compliant encryption/hashing algorithms. I implemented the July 2013 release of the AjaxControlToolkit and subsequently encountered the following error. Note that this error occurs only if debug=false (release mode). We are using .Net 4.5 on IIS 7.5, Windows 2008 R2.

Server Error: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.

Stack Trace:
[InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.]
System.Security.Cryptography.SHA256Managed..ctor() +10438673
AjaxControlToolkit.ToolkitScriptManagerHelper.Hashing(String content) +45
AjaxControlToolkit.ToolkitScriptManagerCombiner.GetCombinedScriptContentHash(HttpContextBase context, String[] bundles) +32
AjaxControlToolkit.ToolkitScriptManager.OnLoad(EventArgs e) +256
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772

Is there a way to set the hashing algorithm???

Impact: Because this error occurs on every page with a ToolScriptManager, we cannot upgrade the AjaxControlToolkit until this issue is resolved!
Comments: Thank you Majianlord; I made the change, tested and confirmed your change. I have submitted a pull request for the change, let us wait and see if it gets ignored into oblivion. https://ajaxcontroltoolkit.codeplex.com/SourceControl/network/forks/cstick/AjaxControlToolkitFIPSHashAlgorithm/contribution/6984