web.sitemap errors?

Hey, all -

For the last week or so my site has been throwing occasional errors, the gist of which is that an attempt was made to access web.sitemap, and it was blocked as forbidden.

Nothing about the site has really changed in the relevant timeframe, except for the fact that the latest release was compiled w/ VS2008 instead of VS2005. It still targets .NET 2.0.

Has anyone ever heard of a similar problem, or have any idea what may be causing it?

 

Here's what the OnError handler is emailing me (the standard error handler trick)-





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System.Web.HttpException: Path '/web.sitemap' is forbidden.
at System.Web.HttpForbiddenHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

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Weird, huh?