Message says can't edit because "already editing", except no one is!

Question

So, here's the deal: My client got a new computer and
installed the latest version of Contribute on that new computer.
But then when she went to edit her website content through
Contribute, she got a message saying "You can't edit this page
because you're already editing it on another computer." So then she
went and double checked that she did not have any drafts on her old
computer, and she did not. She could, however, still edit pages
from her old computer. Unfortunately, though, this is not a good
long term solution. After she contacted me (the site
administrator), I manually deleted the settings file in the _mm
folder and allowed a new settings file to be created, (which went
fine). I also manually deleted the .LCK files for site pages. She
still wasn't able to edit any pages from her new computer, same
error. So then I deleted her user profile and sent her a new
connection key. Same thing. Then I sent someone else in my client's
business a separate connection key, and when trying to edit, this
second person got the message "You can't edit this page because X
is already editing it on another computer" ("X" being the first
person). The same message comes up regardless of the page that
either one of them try to edit. In trying to figure out what might
be going on, it seems that it might have to do with the fact that
the version on my client's older computer is CS2, but on the newer
computer it is CS3. I'm tempted to suggest that my client uninstall
Contribute from her old computer, but if she does that and then it
STILL doesn't work, then she will have no way to edit the site at
all, and she will be even MORE frustrated than she already is! I've
tried setting Contribute admin preferences to both "transition
mode" and "compatibility mode" - it doesn't seem to make a
difference. Could anyone tell me how this problem might be
resolved? I/we would be very, very grateful. Thank you.

Answer 1

Hello there, I'm also getting this problem with a client of mine, she's about to have a heart attack from the stress this is causing her.
Bascially she had Contribute 3 but her system died we got another one up and running for her and installed Contribute 3 and some time after she started getting the problems reported above. Since then I have removed contribute from her computer and any other computer that she had used it on. She's even upgraded to Contribute 4. I've deleted all .lck files I can see on the web server and she still gets this error.
I've tried re-creating the connection as in one of the above posts and no luck. When I watch this folder C:\Users\UserName\AppData\Local\Adobe\Contribute CS4\en_GB\Sites\Site1 I can see the .lck files being created as soon as I clcik edit so this has to be a contribute issue even if remove the .lck files I'm still stuck in a loop. This only happens on the home page index.html all other pages can be changed.
To be honest I can't believe that a company as big Adobe can let this situation go on for so long. Maybe it would be a good idea to have an over-ride for this. After all it is supposed to be a working product all be it end of life. I can say now, there is no way I could ever reccoemnd this or any other updated product at the moment simply because I can't be sure that Adobe will fix and issue or even care.