I encounter a serious problem on a TCL/TK application. When I click on "Home", the cursor goes to the beginning of the paragraph and not to the beginning of the line.
The same with the "End" key. It goes to the end of the paragraph and not to the end of the line.
Finally, to top it all off, when I use the up or the down arrows, they don't move the cursor to the line above or below; they move it to the line where the paragraph starts or ends.
What caused this serious and very painful problem? what do I do to fix it?