sorry if I'm being a moron, but this is bugging the tar out of me.
I am running an older version of round cube on an older server. In this version, the read status column appears before the subject column, right where I like it. But, it seems that in later versions of round cube, read status became configurable (turn it on/off), but now, it's impossible to get the dang thing in front of the subject column.
attaching screenshot.
[ATTACH=CONFIG]1806[/ATTACH]
You can move columns by dragging their headers. When you disable this column, status icon will be inside the subject column.