rakheshster@gmail.com said:
> you choose any one of the screensavers, and then the program freezes

Which OS version are you using?

There used to be a bug in NetBSD's libc which made that
programs sometimes got stuck with a signal mask of
"all blocked". Gnome apps hit this if "fam" is used rather
than "gamin", which is the case normally.
It was fixed in rev. 1.14 of lib/libc/rpc/clnt_vc.c,
on 2006/04/25 18:54:51.
The fix was pulled to the NetBSD-3 branch, but didn't make
it into a formal release yet.

best regards
Matthias