[Xymon] xymonnet Fatal signal caught

I am testing Xymon 4.3.7 and I am trying to monitor about 3000 host pcs. If I get over 2000 hosts, then xymonnet continually crashes. OS is Opensuse 12.1.

I am simply trying to monitor the systems for connectivity right now, using fping.

Is there a limit on the number of hosts that Xymon can monitor?

Are there any other options that I can look at to see what is causing the error?