Hello to everybody,
I´m working with PI for some time now and the more it surprises me that a long forgotten problem suddenly arises again.
The trouble is, that I cannot draw boxes in the images to build the previews. ALT+N does not work, and the respective icon in the tool bar and in the drop-down menue is not active / available.
![embarassed :-[](http://pixinsight.com/forum/Smileys/default/embarrassed.gif)
I have had this problem before; the reason was that I did not work on a proper image... but this time it is a fit image coming right out of
the PI stacking process. So it must be an image. This has occured suddenly - as this morning it had worked properly.
Is there a buck? Re-start of the computer was no use. May be there is a setting I missed?
Can anyone help?
Thank you very much,
Angelika