[MiKTeX] \bm with mathtime complete fonts in Miktex 2.5

[Per T. <pe...@gm...>]

I have used Miktex 2.4 with Mathtimes complete fonts (purchased from Y&Y)
with no problem. Since moving to Miktex 2.5 and the new folder structure
under program files, \bm does not work with Mathtime fonts. In YAP, PS and
pdf files just ordinary math fonts are used instead of boldmath. I have also
lucid bright fonts, \bm works with them with no problem.

I have found a solution which is somewhat undesirable. If I use Miktex
options > Roots and put my old c:\texmf folder (inherited from Miktex 2.4)
above c:\program files\miktex 2.5, \bm command works fine. I am however
concerned with using this solution since I am giving priority to th old
setup. I was wondering if someone can give me a hint what causes this
problem. Is this a bug in 2.5? What changes should I make to the contents of
c:\program files\miktex 2.5 to make it work with \bm and mathtime complete
fonts.

Thanks

Per