Mode 7 terminals (ie: Commstar) do not support cursor control

Specifically, \x11 is not cursor on, and \x14 is not cursor off.

src/conio/cterm.c

@@ -6003,21 +6003,25 @@ CIOLIBEXPORT size_t cterm_write(struct cterminal * cterm, const void *vbuf, int
 								cterm_clearscreen(cterm, (char)cterm->attr);
 								gotoxy(CURR_MINX, CURR_MINY);
 								break;
+							case 30: // APH (Active Position Home)
+								uctputs(cterm, prn);
+								prn[0]=0;
+								prnpos = prn;
+								gotoxy(CURR_MINX, CURR_MINY);
+								prestel_new_line(cterm);
+								break;
 							case 17: // Cursor on
+								if(cterm->emulation == CTERM_EMULATION_PRESTEL) {
 									cterm->cursor=_NORMALCURSOR;
 									ciolib_setcursortype(cterm->cursor);
 									break;
+								}
 							case 20: // Cursor off
+								if(cterm->emulation == CTERM_EMULATION_PRESTEL) {
 									cterm->cursor=_NOCURSOR;
 									ciolib_setcursortype(cterm->cursor);
 									break;
-							case 30: // APH (Active Position Home)
-								uctputs(cterm, prn);
-								prn[0]=0;
-								prnpos = prn;
-								gotoxy(CURR_MINX, CURR_MINY);
-								prestel_new_line(cterm);
-								break;
+								}
 							case 27: // ESC
 								if(cterm->emulation == CTERM_EMULATION_PRESTEL) {
 									uctputs(cterm, prn);