Very sorry to hear you're having problems, but hopefully this will help.
3) saw a message on the support forum that says there is a 6.0.1 update I should install from the update menu. But since the program freezes I can't do that. I am NOT a CC subscriber so I can't update from the CC desktop app either.
You definitely should try updating to version 6.0.1 and see if that fixes things... You can download and apply the patch manually from here:
Also please make sure your system meets the minimum specifications for Lightroom 6 (including being 64-bit):
Hope that helps!
Please add those links to the April 30th note announcing the patch.
I installed Mac LR Desktop 6.0. Its Help menu, Updates... searches and returns saying that I had the most current version. Not helpful.
Nor was Chat installation support, although it did waste a significant bit of my time. Until I found this forum thread with the download link, I couldn't find the 6.0.1 update.
The Mac link above downloads a file named setup.dmg, which contains a patcher for 6.0. After applying the patch, my version reads 6.0.1 and the Help menu directs me to the correct web page. [Aside: how on earth could a bug that obvious slip by any professional Software QA process?]
If you have changed the LR installed folder name, or the name of the app itself (e.g., added a 6.0 to it) , the patcher will fail to run.
I've added direct download links to the updates in the announcement on the Overview page of the Lightroom forums.
Here also are links to the direct downloads: Keeping Lightroom Up-to-Date
Downloading and installing the 6.0.1 patch via the "Keeping Lightroom Up-to-Date" link worked for me. Running LR on a Mac, it was freezing upon lauch. Nothing else seemed to help.
Thank you very much!