No cpu utilization graph under openSUSE 13.1

Running xymon 4.3.13 under openSUSE 13.1, sending data to the local server under 4.3.13 and a second xymon 4.3.12 server under openSUSE 12.3. Since the latest openSUSE 13.1 updates on monday the cpu utilization graph on both servers is no longer generated.

Only difference I can see is that top 3.3.5 on openSUSE 13.1 sets a percent (%) sign in front of the "cpu(s)...." line, whereas top 3.2.8 on opensuse 12.3 doesn't. Could this confuse the rrd generation?

Yours
Hermann-Josef Beckers