placeholders

I've been using Quicken since 1994 and it's been great for checking accounts and my IRA contributions. Everything I've manually entered including the transactions for my IRA has been fine and I haven't had any discrepancies. My problem is tracking a 401 plan from Prudential; the placeholders are throwing things off. Last year and received a few placeholder and was advised just to leave them alone. This year I received more placeholders that reflect a share adjustment (negative numbers) and this is causing my portfolio view not to display Gain/Loss % and Gain/Loss in the portfolio view. The placeholders from last year didn't impair this view, however the new placeholders with the negative numbers seem to have created this problem. I called Prudential and they would not offer any help as far as resolving the placeholders. Prudential said it was a software issue. I did do a Google search on this but there seems to be more questions than answers, I have all the history but I have no idea how to edit to correct the issue, do I edit "Enter missing transaction" or "Estimate Average cost", please advise. I have Q2005 Deluxe, TIA