I solved my Quicken problem. I found multiple transactions (ReinvDiv, ReinvSh & ReinvLg) from 1996-2001 where there was an amount invested but no corresponding number of shares purchased. I don't know if I manually entered these or they were added by a download from the institution. There were no "placeholder transactions" correcting the number of shares before or after the mutual funds were sold so it appears that Quicken assumes these were simply additional cash investments into the mutual funds. I deleted just these transactions and all balances stayed as is but the Net Worth and Portfolio Value reports are now correct.