--- htk_3.4.1/HTKLib/HAdapt.c	2009-03-12 18:41:39.000000000 +0000
+++ htk_3.4.2/HTKLib/HAdapt.c	2009-11-28 14:07:00.972000000 +0000
@@ -992,7 +993,6 @@
     regAcc->obsVec =  CreateVector(x,vsize);
     ZeroVector(regAcc->obsVec);
     regAcc->bDiagMat = CreateBlockTriMat(x,blockSize); 
-    ZeroBlockTriMat(regAcc->bDiagMat);
     tm = (TriMat *)New(x,sizeof(TriMat)*(vsize+1));
     vsp = (int *)tm; *vsp = vsize;
     for (b=1,cntj=1;b<=IntVecSize(blockSize);b++) {
@@ -1910,6 +1911,6 @@
    ac->bVector  = CreateDVector(&acccaStack,vsize);
    ZeroDVector(ac->bVector);
    ac->bTriMat = CreateBlockTriMat(&acccaStack,size);
-   ZeroBlockTriMat(ac->bTriMat);
    ac->next = headac;
    headac = ac;
    return(ac);