LR4/Lightroom 4 - trouble catalogues opening because "another application already has its opening."

Hello!

I recently upgraded from LR3 LR4 to, at the same time spend a Mac on a Windows computer.

I use LR4 successfully for the past weeks, including yesterday.  But today, as I tried to open LR4, two things happened: 1) the window that contains recently opened catalogs only showed my very newest catalog, not others as is usually done, and 2) when I tried to 'open the catalog different' I got an error message.  The error message said: "the Lightroom catalog named '{catalog name}' cannot open another application already has its opening.»  Leave the other copy of Lightroom before trying to launch.

I have only one copy of LR, this is why it confuses me.

I thought that maybe there was a little problem somewhere, so I opened the task Mgr "End task" on Lightroom and try again.  Problem was, he showed that LR did not work (it wasn't because I clicked on 'exit' when I received the error message says, who have released the program).  Thought that was weird, so I restarted the computer, thinking that might help.  That did not work.

I googled my problem and found a somewhat similar situation, in which the person uninstalled/reinstalled LR and everything was back to normal.  I tried this as well, but it did not work.

I always get the same exact error, if I try to open the LR catalog, or go to the folder that contains the catalog and clicking on that.

Any thoughts?  I am very frustrated and I have a lot of images to process this week.  (I miss my Mac)

Thank you very much!

Searched some more and found my exact problem (resolved on 2 windows open from the top - http://forums.adobe.com/message/1384884#1384884 )-YAY!

Tags: Photoshop Lightroom

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