It sounds like you have a copy of Adobe Creative Suite 5. Is that true? Did you reinstall Photoshop using the Creative Suite 5 installer?
Restart your computer and try again.
If that doesn't work, uninstall Acrobat (the link to the uninstaller is in the Acrobat folder). Then use the Creative Suite 5 installer to reinstall Acrobat 9.
I hope this gets through, since I am now not able to even log in to my adobe account (even though I've been an Adobe customer for over 20 years). My user ID and password stopped working at 4:00 today. Was on the phone with adobe for hours, and they are not able to even get me access to my account or products that I bought from them.
Yes Adobe CS5. Tried restarting. Thanks, but didn't work. Adobe said I need to do a complete reinstall of CS5 to get Acrobat to work. I asked "Then why do you give the option of reinstalling apps individually?" No answer. That's when we discovered that I could no longer even access my account or download my purchased products. They said they are "elevating the matter" and I will here from someone in 24-48 hours. So apparently "elevating" means "We are hanging up now. Talk to you in a few days." Try explaining that to my clients.
Also dealing with this issue... The guy I got told me to create a new user account and install it there... Seriously??? These people have never had to meet a dealine before!....
I've been reading several webpages where people have completely removed and reinstalled the software and it STILL won't work. The rest of my suite is still working and I'm afraid to pull it out because I can't trust that it's going to work again! Adobe, it's time to step up here!
Edit: Same problem being discussed here : http://forums.adobe.com/message/4228463
After 4 DAYS of Adobe Reps, having me completely uninstall CS5, than use clean tools, and then manually hand-pick remaining adobe files out, and then reinstall CS5 (I did this whole process several times over several days), and after having my entire account become inaccessible to the point that even they couldn't re-set my password, I finally got someone who spoke english (no offense intended) and said all I needed to do was re-download Acrobat (it loads separately from the rest of CS5 and has its own serial number). This, along with fixing some folders that we unnecessarily stripped along the way, allowed me to open Acrobat, enter my serial # and get up and running. Days lost due to poor Adobe training and sub-par "technicians." Still crawling out from under the rubble. SO DON'T LET THEM TELL YOU TO UNINSTALL AND REINSTALL CS without a fight. Demand a supervisor.
I purchsaed CS5 as a download, so I have no disc and have to re-download if I need to reinstall. When you say your re-install doesn't work, do you mean it won't reinstall or it doesn't solve your original problem? If it's the latter, could be the uninstall didn't get rid of all of the original files. I had to run the uninstall and then download and run the Adobe CS Cleaner Tool before reinstalling, and even then there were a few files that still remained. Find cleaner tool a: thttp://www.adobe.com/support/contact/cscleanertool.html.
Done that - several times. It would appear that the disk version I have is looking for CS 4 or 5 but not finding them, even though I have it installed. I've run the cleaner several times and even went on the hunt to remove all Acrobat files, including Reader, to no avail... everytime I put in the new copy it tells me to start Photoshop or another component of the suite...
I found a new solution and documented it on this page:
http://forums.adobe.com/message/4782235#4782235
Check it out if you haven't found a working solution, it only takes seconds....
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