Library Module view of Photo different than Develop Module Version

Question

I'm sooooo frustrated. I'v worked on a .NEF file using Topaz Lab's Adjust4, then Denoise then Photoshop CS5, each time it saves an new version of my file in Lightroom, I have about 6 of them.
Problem....when I scroll through pictures in develop, the pictures look perfect (noise reduction, excellent colors and contrast, the way I expect it to look after my adjustments), then about 1-2 seconds later it changes to a noisy, less contrasty and less colorful version).
If I switch to Library mode the pictures looks good again. If I export, though, it exports the Develop module version that doesn't look good. The whole thing is very hit and miss, sometimes Library looks good, then other times it looks like Develop. If I zoom to 1:1, then both version look bad permanently.
I just want to export and use the Library version of the file. Also, I cannot recreate the look using any combination of Lightroom adjustment, which strongly suggests that the Library version I am viewing is the result of my Plug-in and Photoshop work.
I've read that the initial view may be the JPG version of the shot, but I don't think so, it looks way better than the other JPG's that came out of the camera at the same event.
Help

Answer 1

Its possible the thumbnail is viewing the edited version that was created via the camera. Lets say you made a change in the camera such as sepia for example. When you first load the image into LR it will be displayed as sepia, but a few seconds later, it will remove those changes giving you the raw image.
In the develope module it ignores the camera changes and you must recreate the changes in the develop module. When you are done, its a good idea to save the file (ctrl-s on windows) which saves the changes to the sidecar file, should you need to see the changes in Bridge for example.