Line 465 in SgmlReader.cs fails. Looks like it's trying to load a dtd from the current directory which isn't supported in Silverlight.
I just ran into it. I'll take a closer look to fix.
Id #779 | Release:
None
| Updated: Jan 27 at 8:51 AM by dsmits | Created: Jan 21 at 3:01 PM by miketrash