Glad you found our previsous discussions into this issue. Sun has so far been unwilling to change the name of their infiniband driver to one that doesn't conflict with NI's "ib" driver. Thus, removing infiniband support seems to be the only workaround at the moment.
Also, note that the NI-488.2 v2.3 driver for Solaris doesn't support Solaris 10 officially.
Scott B.
GPIB Software