I bought lightroom 6 (not CC) about a month ago. I've installed it on my MacBook Pro and have been using it without issues. Worked fine yesterday, but today I can't get the program to open. The initial screen come up with the picture of trees, but the application never opens...keeps showing as not responding. I've tried restarting both the app and my Mac numerous times and it keeps doing the same thing! Aghhhh!!! Help please!!!