[GRASS-user] Can't get i.vi (from grass-addons/gipe) running any more

I've recently compiled GRASS' source code (both 6.3 and 6.4) as well as
the gipe add-ons under Ubuntu 64-bit.

I can't get i.vi running anymore although I am sure I am pointing to the
correct paths each time I try to compile the gipe tools.

Is it my system only?

Regards, Nikos