diff -urN xmp-2.7.1-orig/src/player/player.c xmp-2.7.1/src/player/player.c
--- xmp-2.7.1-orig/src/player/player.c	2009-07-18 07:43:41 +0900
+++ xmp-2.7.1/src/player/player.c	2009-07-28 09:27:09 +0900
@@ -326,7 +326,8 @@
 	} else if (key == XMP_KEY_OFF) {
 	    SET(RELEASE);
 	    flg &= ~(RESET_VOL | RESET_ENV);
-	} else if (e->fxt == FX_TONEPORTA || e->f2t == FX_TONEPORTA) {
+	} else if (e->fxt == FX_TONEPORTA   || e->f2t == FX_TONEPORTA
+		|| e->fxt == FX_TONE_VSLIDE || e->f2t == FX_TONE_VSLIDE) {
 	    /* This test should fix portamento behaviour in 7spirits.s3m */
 	    if (m->fetch & XMP_CTL_RTGINS && e->ins && xc->ins != ins) {
 		flg |= NEW_INS;