I just upgraded from LR 4 to the latest version. When I try to look at RAW files in the develop tab they all look like the one below: sort of like an abstract tie dye sort of thing. The thumbnails at the bottom of the screen look fine. These are all files that worked fin in my previous version.
Does anyone have any ideas what's going on?
I think by "latest version" you meant LR 6.6 or LR CC 2015.6? If so, try unchecking the option Preferences > Performance > Use Graphics Processor. See here for details: Adobe Lightroom GPU Troubleshooting and FAQ
The latest version of LR is CC 2015.6 or Stand alone 6.6
If you are running either of those versions (Actually exactly the same version with different type of Sign In) go into the LR Preferences, the Performance tab and turn off the option to use the Graphics Processor.
That worked!! THANK YOU!!