Resolved Watchdog statistics not showing date and time anymore since new year

[King555]

Since the beginning of the new year, my Watchdog in Plesk 10.0.1 under Debian 5 doesn't show any dates and times in the statistics graphs. I mean the date and time on the X-axis of the graph. Now I can only guess, when certain peaks in server activity took place.

Does anyone has a solution for this?