Service Pack 2 / Office 2007 Icons?

I apologise if this question has already been asked, but I have installed
vista service pack 2 today, and have noticed that all office 2007 files no
longer display the icons, instead, I get a white icon.

Whether it is the file itself or a shortcut to the film, I just get a white
icon, instead of the excel icon or access icon or word icon.

It seems that only files saved in 2007 format are affected, as anything
older shows the icons correctly.

Thanks in advance

Daniel

Did you try to re-associate office2007 files (Word, Excel, whatever) with
their original applications, e.g. .doc, .docx, etc with Word, xls, xlsx, etc
with Excel and so on?
Maybe association broke and so icons don't know where to look for their
appearance.