Please help. I have Lightroom 4.4 and I have not been able to open the program at all today. It brings up a box stating that "the program cannot be opened becasue another aplication already has it opened." It is not open. I went into task manager and closed it. It went away from there but I still get the message. I have restarted my computer several times today as well. I spoke with someone at Adobe and they had me try everything I already did then told me "the experts are in the forum, they can help you." so.....seeking out experts! lol I am in the middleb of a huge project and am freaking out a bit
Can you please tell are you using mac or windows, if possible can you post the screenshot or the error message
I would suggest you to go at the location where you Lightroom Catalog is stored and delete .lock file if its there (do not delete .lrcat)
By default, its location under Pictures\Lightroom folder.
Then, try to launch Lightroom and let us know if that works for you.