Photoshop CS4 won't recognize file and won't save

Question

Help!  I have Photoshop CS4.  I have had trouble in the past with photoshop not recognizing my raw files from Nikon (NEF).  Sometimes it does and sometimes it doesn't.  Now I can't get PS to save any file, jpeg or ps.  Can anyone help me please?

Answer 1

Cherichman wrote:
…What next?
• First of all, click on the following link and READ it in its entirety.  Then provide basic information.
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
http://forums.adobe.com/thread/419981?tstart=0
• What exact version of Ps CS4 are you using?  11.0.2?
• Exact version of the OS?
• You are not working over a network, are you?
• Have you tried creating a fresh, new account and logging in as a different user?
• Have you Repaired Permissions with Apple's Disk Utility?
• Check the read and write permissions on the folder(s) and volume(s) to which you are attempting to save.
This is the boilerplate text often used in connection to saving to a network (please NOTE the part where it explains that normally, it does work, but that it is impossible to troubleshoot someone else's network remotely, and that's why it's not supported by Adobe):
If you are opening files over a network or saving them to a network server, please cease and desist immediately in the event you are currently experiencing problems with one or more files. Working across a network is not supported.
See: 
http://kb2.adobe.com/cps/406/kb406793.html
  Copy the CLOSED file from your server to your local hard disk, work on it, save it again to your local hard disk, close it, and copy the closed file back to the server.
     Of course, the fact that Adobe does not support working across a network does not necessarily mean it won't work.   It should.
    Adobe's position is that there are too many variables in a network environment for them to guarantee that everything will work correctly in every network, especially given the fact that if something does not work properly, it's probably the network's fault, and Adobe has no way of troubleshooting your network.
  If you can't work locally, you are on your own, and if something happens, you're on your own. If you must work from a server, make sure your network administrator is a competent professional.
When problems arise, a lot of valuable work can be lost.