We have been using Infragistics 2006v1 for a few years without any issues. We recently renewed and updated our site to Infragistics 2009v2. After a day or so of uptime on our production server we start getting random exceptions with the infragistics controls. The exact exception that start it off is below. The only way to fix this is to do an IIS reset and then it will be stable for a day or so.

 ** Exception    : Object reference not set to an instance of an object.

** Stack Trace  :    at

Infragistics.WebUI.Shared.GlobalCssHelper.GetPageContainer(Page page, Boolean create)

   at Infragistics.WebUI.Shared.GlobalCssHelper.OnInit(WebControl

control, Page page)

   at Infragistics.WebUI.WebDataInput.WebTextEdit.OnPreRender(EventArgs

e)

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Page.ProcessRequestMain(Boolean

includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)