Okay, it's not the VSS.......

Well, searched the forums here and found exactly the same symptoms I had, when in drive, the car will slip from stand still through 1st and through 2nd. Also, if I shift it down to 1 or 2 and start there, grabs just fine, shifts from 1st to 2nd no problem and then I just shift it to D and it works fine. It all started with my O/D light flashing on me at about 80, then starting it again, the O/D quit flashing and began slipping as I described above. I replaced the VSS and same exact problems, adjusted the MLPS, still same problem....... Fluid level good, no burn smell..... Okay, what is the problem??????????????? HELP..................