no booleans

 From:  steve (STEEVE)
3514.1 
just installed the april beta and MoI won't perform even the simplest booleans...like cube minus cylinder...the "calculating" indicator just goes on and on.

other functions are ok, trim, for example

i recently reinstalled windows (xp)...could it have something to do with this?

no problem with v1.1

any ideas?