Trouble importing citations with 2010 publication dates from PubMed

I am using Endnote v 9 and regularly import citations from PubMed (save as a file from PubMed, open Endnote, import using a slightly modified PubMed filter).

As citations are starting to have 2010 publication dates, these citations show up without a number in the year field in my library.

The filter has the following form for date of publication:

DP-Year

DP-Year Date

which worked just fine for 2009 citations, but it does not seem able to handle citations with

DP  - 2010 Jan

Any ideas?