I've been using Photoshop since version 2.5 in 1992. I'm a full time pro, and use CS5 with ACR 6.4.1.
My problem is that with my current work flow, I would download the raw files from my Canon camera as CR2 files.
When I open ACR from bridge, to adjust my CR2 files, ACR launches - I make some adjustments, and finish by clicked on the done button in ACR, which then cloes.
Now my problem/issues is that those CR2 files should now register a new date/time in the "date modified" section in bridge - but it doesnt - the thumbnail preview will update without issue, but the modified date doesnt change.
If I do the same thing with a DNG file, the date modified does change.
Now one more thing - I did a completely fresh installation of both my OS (Windows 7 64 bit) and a clean installation of CS5 with all Adobe updates and NO other 3rd party plug ins.
So while Adobe have been helpful and keep describing this as "weird", after 3 phone sessions with them, they still havent been able to offer a solution.
I asked 4 other colleagues who use Canon cameras and asked them if they'd noticed any issues similar to this, and all said that they were having the same problem.
Yet Adobe state that they cannot replicate the issue at their Technical help.
So I'd dearly welcome any help or suggestions as to a cure please ?