DI_Inability to enter value in user defined field: Hour

I am using SAP Business One 2007 A PL15, and I seem to be experiencing the same issue described in these two support notes:

1086704 [DI_Inability to enter value in user defined field: Hour|https://websmp230.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/smb_searchnotes/display.htm?note_langu=E¬e_numm=0001086704]

1016731 [DI_Inability to enter value to Hour User Defined Field|https://websmp230.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/smb_searchnotes/display.htm?note_langu=E¬e_numm=0001016731]

However, they are for SAP 2005 and say that the issue should be fixed.

Does anyone have any insight into whether these issues have been fixed in a more recent patch of SAP 2007?

Thank you in advance.

Mike