Trend Micro last virus scan date

We submitted some scans from the Trend Micro server and verified that they completed.  A few days later, LANDesk does not show a new "last virus scan" date.  I'm not sure where LD is picking up the date; I can't find the listed date anywhere on my computer (which was one of our test scans.)

I do see the correct date in the registry, though:

HKLM\SOFTWARE\TrendMicro\PC-cillinNTCorp\CurrentVersion\Misc.\VirusScheduleScanDateTime

LDMS 9.0 SP1, TrendMicro OfficeScan 8.0 SP1

Any idea where the disconnect is and how to correct it?