I found a decent work around for the time being until Adobe gives a solution.
I used this tip here:
http://www.itninja.com/software/adobe/photoshop-elements/12-1001
"I found a quick & dirty way to get rid of the log-in prompt that appears when starting PSE12, which many people find annoying:
1. Rename %ProgramFiles(x86)%\Common Files\Adobe\OOBE\PDApp\core\PDapp.exe to PDapp.old (or something)
2. Copy notepad.exe to the path above and rename it to PDapp.exe"
But found I get an error when you open Elements. To get around that I used nop.exe http://joenord.com/apps/nop/ and replaced PDapp.exe with it.
Now i get a clean open of Elements. No asking for sign in information.
Hope this helps!