This will stump every ASP.NET guru out there

[Mike]

I have been receiving this very strange 404 lately (at least 200 a
day) and was wondering
if anyone else out there has had a similar problem and was able to
resolve it or can provide more detail into the cause. For some reason
when users receive this error and they hit refresh the error goes
away. Seems like a IE or ASP.NET cache problem, but can not find any
articles on it.

404 not found C:\inetpub\mySite\mySite_com_files\pictures.aspx

(and this is correct, does not exist and never will)

Oh yeah, sometimes instead of mySite_com_files it will be a
username_com_files or username_files. _files is on all these 404's no
matter what was before it.

StackTrace
System.Web.UI.TemplateParser.GetParserCacheItem() at
System.Web.UI.TemplateControlParser.CompileAndGetP arserCacheItem(String
virtualPath, String inputFile, HttpContext context) at
System.Web.UI.TemplateControlParser.GetCompiledIns tance(String
virtualPath, String inputFile, HttpContext context) at
System.Web.UI.PageParser.GetCompiledPageInstanceIn ternal(String
virtualPath, String inputFile, HttpContext context) at
System.Web.UI.PageHandlerFactory.GetHandler(HttpCo ntext context,
String requestType, String url, String path) at
System.Web.HttpApplication.MapHttpHandler(HttpCont ext context, String
requestType, String path, String pathTranslated, Boolean useAppConfig)

-Mike