[FieldTrip] Strange path problem?

[Marco Rotonda]

Hi fieldtrippers,
yesterday I moved to a win7 64bit version, installed latest matlab
(2011b) and updated fieldtrip to the latest version
(fieldtrip-20111223).
After setting up all I tried to run a script I used until yesterday
and I get a strange error:

Invalid MEX-file 'C:\Program
Files\fieldtrip\fileio\private\read_16bit.mexw64': The
specified module could not be found.

fileio is in the path, so I thought it was about the x86 program and I
moved fieldtrip there, but same result:

Invalid MEX-file 'C:\Program Files
(x86)\fieldtrip\fileio\private\read_16bit.mexw64': The
specified module could not be found.

I think I miss a stupid thing.

Sorry to disturb you,

Marco