Photoshop :: Date Of Creation After Making Bridge Create TIFFs With Image Processor

I went through about 100 files and did what I wanted in Camera RAW (started out with NEFs). Thereafter I had Bridge make TIFs of all the files in the folder using the PS Image Processor.
 
Now, looking at the TIF folder in Bridge, I find that about 80 of them has a wrong creation date (I checked the Preferences and I have asked for the date of creation - and not the date of modification). As I watch (several minutes) Bridge changes some of the dates to the ones known to me to be correct - but not all. If I close Bridge, restart Bridge and open the folder again the same happens, i.e. it starts all over. Even stranger is that the Windows Pathfinder have problems with the same files - i.e. does not show the date of creation at all.
 
The date of these 80 files are all the same - and they have been edited over several days!
 
I have done a lot of work on those files and would hate to start all over. I checked and of course the dates are the original in the RAW folder that I started out with.I am sure that I do not have any bugs in my PC.