diff --git a/assets/disk0/tvdos/bin/taut.js b/assets/disk0/tvdos/bin/taut.js
index 1b44ae7..f8238a9 100644
--- a/assets/disk0/tvdos/bin/taut.js
+++ b/assets/disk0/tvdos/bin/taut.js
@@ -190,6 +190,9 @@ function buildRowCell(ptnDat, row) {
         sVolEff = ''
         sVolArg = sym.middot.repeat(2)
     }
+    else if (voleff >>> 6 == 1 || voleff >>> 6 == 2) {
+        sVolArg = (voleffarg & 15).hex1()
+    }
     else if (voleff >>> 6 == 3) {
         if (voleffarg == 0) {
             sVolEff = sym.middot
@@ -211,6 +214,9 @@ function buildRowCell(ptnDat, row) {
         sPanEff = ''
         sPanArg = sym.middot.repeat(2)
     }
+    else if (paneff >>> 6 == 1 || paneff >>> 6 == 2) {
+        sPanArg = (paneffarg & 15).hex1()
+    }
     else if (paneff >>> 6 == 3) {
         if (paneffarg == 0) {
             sPanEff = sym.middot
diff --git a/assets/disk0/tvdos/bin/zfm.js b/assets/disk0/tvdos/bin/zfm.js
index d694a68..5c9d231 100644
--- a/assets/disk0/tvdos/bin/zfm.js
+++ b/assets/disk0/tvdos/bin/zfm.js
@@ -40,7 +40,8 @@ const COL_HL_EXT = {
     "tap": 190,
     "txt": 223,
     "md": 223,
-    "log": 223
+    "log": 223,
+    "taud":109,
 }
 
 const EXEC_FUNS = {
@@ -62,7 +63,8 @@ const EXEC_FUNS = {
     "bas": (f) => _G.shell.execute(`basic "${f}"`),
     "txt": (f) => _G.shell.execute(`less "${f}"`),
     "md": (f) => _G.shell.execute(`less "${f}"`),
-    "log": (f) => _G.shell.execute(`less "${f}"`)
+    "log": (f) => _G.shell.execute(`less "${f}"`),
+    "taud": (f) => _G.shell.execute(`taut "${f}"`),
 }
 
 let windowMode = 0 // 0 == left, 1 == right