Windows Mobile 6.1 Daylight Saving Time Problem

[Bushfiva]

Do you synchronize with Outlook? My understanding is that 6.1 gets the DST table from Outlook. Therefore, both the OS and Outlook need to be correct. You say you've been through the Microsoft site, so you've probably already seen this: Download details: Microsoft Office Outlook Tool: Time Zone Data Update Tool for Microsoft Office Outlook and Updates for Daylight Saving Time | Smartphone and PDA | Windows Mobile

It seems you only patch the phone directly if you don't synchronize with a desktop: otherwise, the next synch undoes the patch if Outlook itself is the problem.