Does anyone know the correct "format" for the stock symbol to download stock
quotes for preferred shares from the Toronto Stock Exchange. Note that
getting quotes for common shares is fine; no problem.

Here's an example ...
Canadian Imperial Bank of Commerce Preferred D is commonly listed as ...
cm.pr.d or cm-d.
The former gets me the name but no stock info. The latter "sometimes" gets
me the price, but most often will not. It is getting very frustrating to
manually update 20 stocks every day.

FWIW I'm using Excel 2007 and Vista Premium. Note that everything worked OK
until a few months ago, so I don't think it is an Excel or Vista problem. I
think I really just need to know the format for symbols for preferred shares.