Something that's annoyed me since Minicad has been dashes. When you apply a dash style to a line, the start of the line is ok, but unless your lucky the end of the line has a short dash or just white space to the end of the line. A great improvment would be an overhaul of the dash styles making them elastic with better dialogue control to set them up. Most other CAD's allow this and it is considered standard drawing practice.
One other thing is text style, it would be great if once a text object is selected, all the attributes for it are displayed and can be controlled by the object info pallete (font, size, justification, style etc) instead of navigating through several menu's to find it out.
It would also be nice if when panning our drawing we can see the whole lot as we move the mouse. At the moment, whatever was off the screen shows as nothing until we un-click the mouse