SC 13G
MORGAN STANLEY filed this form SC 13G on 26 Jan 2001
- velhartice.info
<PAGE>


-------------------                                           ------------------
CUSIP No. 58468810                   13G                      Page 5 of 13 Pages
-------------------                                           ------------------

--------------------------------------------------------------------------------
   1.    NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

         MORGAN STANLEY VENTURE PARTNERS III, L.P.
--------------------------------------------------------------------------------
   2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a)[ ]
                                                                          (b)[ ]
--------------------------------------------------------------------------------
   3.    SEC USE ONLY

--------------------------------------------------------------------------------
   4.    CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------

      NUMBER OF                   5.    SOLE VOTING POWER                -0-
        SHARES
     BENEFICIALLY                 ----------------------------------------------
       OWNED BY                   6.    SHARED VOTING POWER       1,976,719
         EACH
      REPORTING                   ---------------------------------------------
     PERSON WITH                  7.    SOLE DISPOSITIVE POWER           -0-

                                  ----------------------------------------------
                                  8.    SHARED DISPOSIVE POWER    1,976,719

--------------------------------------------------------------------------------
   9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,976,719
--------------------------------------------------------------------------------
  10.    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES               [ ]
         CERTAIN SHARES*

--------------------------------------------------------------------------------
  11.    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

         6.5%
--------------------------------------------------------------------------------
  12.    TYPE OF REPORTING PERSON*

         PN
--------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!