GIMP 2.4.6 crashes when creating new image, resizing or saving ...

Dear all.

I'm not sure what exactly has happened and at what point. I use gimp
3.4.6 (also previous version 3.4.5) along with windows xp x64. All was
working fine so far, though now GIMP crashes each time I try to create
a new image providing some customised resolution, e.g. 320x240. The
same happens when I attempt resize images or save.

The alleged module responsible for this is:
AppVer: 0.0.0.0 ModName: icm32.dll

Now, I've reinstalled gimp from scratch and this doesn't help. Any
ideas ? It's very annoying cos I don't know whether there was some
corruption of system, or new incompatible updates or what ...

Cheers,
Peter.