[Plugin: Instapress] windows live writer problem

Im intresting with your plugin Instapress, i been use it for last two weeks, it’s really impressing me now i can show my instagram galery into my blog, but i have small problem, i found out that this plugin creating problem with windows live writer, when plugin activated my live writer showing this error “The response to the metaWeblog.getRecentPosts method received from the weblog server was invalid: Invalid response document returned from XmlRpc server” but when i turn it off, this problem disapear.
Maybe this information will be your concern. Or maybe somebody can help me.

Thank you

http://wordpress.org/extend/plugins/instapress/