I agree, too. It’s unfortunate that Quicken does the Remove and Add so easily, and wipes out a cost basis. Though if you’re downloading it’s following what technically happens usually (an exchange of shares).
You could edit the add shares dialog to include the cost and date purchased.It is my experiance that TD Ameritrade may have problems tracking the cost basis through the name change as well. I would suggest checking Gainskeeper at the end of the month and calling to have it corrected if needed. Simpler to take care of it now instead of when you are looking at incorrect information on a 1099 after you sell the shares.
I agree with you and RickO. Just edit the security and change both the name and the symbol. You may end up with two securities with the same name. If that happens, you can merge those two securities. Just be sure you pick the correct security to maintain. If your not sure which to keep, change the name ol the one you want to remove by adding a character or two to the end of its name.
For those reading this thread who happen to use QWin, the preferred solution would be a "Corporate Acquisition" with a 1:1 ratio.