TEXT ENDTEXT causes the _PAGENO variable to be incremented. Here's the repo code:

CLEAR
_PAGENO = 1
HoldPage = _PAGENO
 
FOR x = 1 TO 129
   TEXT TO m.myVar NOSHOW
      "Hello World"
   ENDTEXT
   IF _PAGENO <> m.HoldPage
      HoldPage = _PAGENO
      ? 'x = ' + TRANSFORM(m.x) + " and _PAGENO = " + TRANSFORM(_PAGENO)
   ENDIF
ENDFOR
? _PAGENO

For me, running this in VFP 7 or 8 causes the _PAGENO variable to increment to 3. If I'm missing something, please let me know.