When I select a certain trigger on the events page, the time control goes over the left limit. This only happens to this specific trigger. See the screenshot

The URL of the page is events.php?triggerid=13600&nav_time=1351687794&sid=8542327f232ba475 may be it will help.

The events for the problem trigger:

Time,"Host","Description","Status","Severity","Duration","Ack","Actions"
31 Oct 2012 13:50:02,"trapper-host","trapper-trigger","PROBLEM","Not classified","21h 12m 52s","No","Failed"
31 Oct 2012 13:49:54,"trapper-host","trapper-trigger","OK","Not classified","8s","No"," - "
31 Oct 2012 13:45:29,"trapper-host","trapper-trigger","PROBLEM","Not classified","4m 25s","No","Failed"
31 Oct 2012 13:45:19,"trapper-host","trapper-trigger","OK","Not classified","10s","No"," - "
31 Oct 2012 13:31:46,"trapper-host","trapper-trigger","PROBLEM","Not classified","13m 33s","No","Failed"