On Sep 2, 2012, at 7:39 PM, Chris Jenkins chrisjenkins@mac.com wrote:
[…] All the affected text goes white, it's as though it has lost its scope although selecting some text in the unhighlighted area and showing the scope reveals a perfectly normal scope list.
OK, so it might be a refresh problem (rather than a parse problem).
Next time it happens, try switch to another tab and back, to see if that fixes the problem (and let me know the result).