Surround WIth on source-controlled files

I have a file that is read-only because it's not checked out, and when I do
a "Surround With Try/Catch" I get a brief hang and then an exception
(already posted to tracker). The exception is something about not being
able to write to a read only file or something close to that.

If I make some other change first (causing the file to be checked out), then
Surround With works fine.

I was able to repeat this a couple of times across VS2005 sessions, using
build 221.

Just FYI.