Hi, Andrew.
Hmm... I hadn't even noticed some of the recent changes in Quicken's backup procedures.
There was a lot of change in Q2010 from prior versions. The biggest was that it changed from multiple files in "the file" to including everything in a single large QDF file. And it started making way too many of those now-huge files - and appending a long date/time string to each name. We were using up disk space at a scary rate! Early update Releases changed some things, then changed some back. But along about R 3 in November 2009 things kind of settled down and I had not noticed any changes since then. I had not even noticed the very welcome new explanatory text in the Edit | Preferences screen.
Now, I see that I have 10 backups in my QuickenW\BACKUP folder, all dated from June 4 to now, and all with the date and time in the filename - and each about 48 MB. No two have the same file date. My voluntary manual backup file has only the latest backup, plus a few "milestone" archival backups from several months ago, using the older system. My Preference setting is for 5 automatic backups, so I don't know why Quicken is keeping
Note that the option to NOT add the date and time to the filename is only for the manual backups that we make by clicking Backup or pressing +B. The date and time are added to the automatic backups with no option to omit them.
RC