pkgadd help

I'm trying to install a package and it worked on most of the sun boxes and one of the box is just freezing and not going further. Her is the output.

pkgadd -d packagename.dstream

Select package(s) you wish to process (or 'all' to process
all packages). (default: all) [?,??,q]:

Processing package instance <xxx> from </path of the package>

xxxx for Sybase on Solaris package
(sun4) 2.6
....

Any help would be appreciated. What log file I can check?

maybe the boxes have a different patch level. download the latest patch cluster for your solaris version and try to patch your system BEFORE the install of new software. please take a backup of your installation BEFORE install the patch cluster.