Thank you for the clear screen shot. What is strange is that it only effects some lines. Is there any obvious pattern to the effected lines? If you jump to these lines in the file, do these code lines contain Japanese characters? What about Japanese characters on the line above or below?
Can you please go to:
IDE tools menu -> Options -> Environment -> Fonts and Colors
Show settings for = Environment Font
what font is set? My English system says "Automatic", so if you see the same thing, could you please export your VA and IDE settings and send them to me:
VA Options -> Performance -> Export Settings IDE tools menu -> Import and Export Settings -> Export selected environment settings
I can then import them here and see if I can reproduce the problem.
Thanks for the settings. We are able to reproduce the problem by selecting "Yu Gothic UI" as the VS Environment font. A temporary workaround is to select a different font (Tools | Options | Environment | Fonts and Colors | Show settings for Environment font). (case=93507)