I was creating a new toolbar button yesterday and tried to alter an existing button image (known variously as icon or bitmap). When I did this in the CUI, I got a cloud picture and had to resort to a backup plan. The same happens if you create a custom toolbar and want to use our button images on your new buttons.
I think this is a bug in AutoCAD 2007 because it works in all earlier versions. My way around it is as follows:
Open up AutoCAD 2006 or earlier
and edit the bitmap there and do a Save As to some file name into the folder you
distribute your menus. Then you can Open it in your toolbar. Those versions of
AutoCAD are more flexible and seem to have no trouble finding the
bitmaps
If this is all Greek to you, I suggest you visit our website and download the AutoCAD produced tutorials on customizing your menus. The web page is here
The H-Factor 
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