I get a similar message, not in Photoshop or in Lion (I'm still on Snow Leopard), but it is entirely Adobe generated, reproducible and may possibly have a related cause, so I'll relate it FWIW. I get the message (somthing to the effect of 'file has been modified by an external application' etc) in Lightroom after using Photoshop Elements as an external editor to edit the file - in one particular circumstance. Normally there is no problem, the two programs talk to each other properly and the file is saved in Lightroom OK, with no message. The problem arises when I quit Photoshop Elements while the photo in question is open and unsaved. I then am prompted to save, which I do, and Elements immediately closes. But apparently there isn't time for it to talk to Lightroom with all the info, and that's when I get the message when I return to LR. I usually accept the changed file if I can decipher which version the one I was just editing was. I have a relatively old computer (2006 iMac) and wouldn't be surprised if the speed of writing to disk had something to do with this, so am not looking for a solution or "helpful advice" for my problem here! I'm just chipping in in case other people may be using Lightroom or hitting close/quit then save.
... View more
I have very big libraries with very big files and a relatively old computer, so I wasn't that surprised to find LR3 slower than LR2. I still upgraded though after the trial because the develop controls are better. It was a price worth paying for me. I sell relatively few photos, so can afford to take time preparing them (although I'm pushing the limit here). However I don't buy the argument that is always trotted out when users complain about slowness: it's your own fault for not having a high end computer or employing a full time IT professional. So we should buy a new $4000 computer so we can use a $100 upgrade? That is nuts plain and simple. It's obvious from the global recession that the upgrade cycle has lengthened as people delay their purchases. My guess is that most photographers write off their IT spend against taxes anyway, so if sales drop by 50%, you may not be able to upgrade your computer as soon as you would like. At the same time file sizes, even for amateur point and shoots, are getting much bigger, and will become more so, so this should have been factored into the rendering time equation for the product designers. The person who buys a $400 18 megapixel point and shoot is probably not the same person who buys a top of the range $7000 computer system. IMHO, Adobe has a tendency to build bloated software, just like Microsoft. Personally, I never use Slideshow, Print or Web modules and I don't really need a Flickr uploader either. How about thinking about how to make apps leaner, not bigger? With modules that can be uninstalled for example. Finally though, in terms of speed, it's not all bad. Rendering, previews and exports are slower, yes. But some other things seems to be dramatically faster: some text input, searching, the importing file window - a lot of the file system machinery.
... View more