This has been reported before, by me and someone else as well.
Mainwindow (non listbox) tabbiing in 6.2 moves BACKWARD to the tabstop of that tab, rather than moving forward to the next free tabstop (the same as it already did in LISTBOX's)
ie: assuming tab stop was 5.5 characters in and you sent this line //echo ABCDEFGH $+ $chr(9) $+ XZY
>You would see ABCDEFXYZ (but with only the left half of F showing)
>This is the effect with no background the text is written, erased, from the tabstop, and the remaining text is writtin from there.You however have discovered something else about it as well, if you insert a graphic into the background, the erase process is not done (likely because it might be gonna erase the background ), so the text is still written from the tabstop and it writes over the last text.
I beleive this is a bug personally, it may however be a unlisted feature of @windows now, time well tell.
If it is a bug, i would love that it could be fixed, but remain inplay as a feature you can turn on about the window :-) <hint hint Khaled>
Hey try truning off the background, and all the text that was under the other text well disapear, you still have the missing text problem, but it demonstrates how the background has an effect. Pretty neat effect actually, makes for the option of adding flashing text.