"When running web browsers in both device areas, users will only see (and be reminded of) a subset of their open web pages at any given time."
Setting firefox as my default browser helped here. (Not going to work on RT of course). Clicking a link in the Metro mail app takes you to the desktop instance of the browser, unlike chrome and ie, which also seem to ignore any sessions you have open in the desktop version.
That reminds me of another gripe. You can only launch IE in "Metro" mode when it is your default browser. It took me about 40 minutes to figure that out on Friday.
Setting firefox as my default browser helped here. (Not going to work on RT of course). Clicking a link in the Metro mail app takes you to the desktop instance of the browser, unlike chrome and ie, which also seem to ignore any sessions you have open in the desktop version.