I used Bridge CS3 to crop some pictures right after I took them. Then a couple of weeks later I decided to try LR again, LR 2.5. I imported the pictures into LR. THen when I go into LR, the rendered pictures are somewhat blurry. Plus it tells me the picture is either off line or missing. If I go into the Develop module, then the photo looks good again. Is this because I am using LR 2.5 but first used Bridge CS3? Oh, not sure it matters but LR 2.5 is the 64-bit version and CS3 Bridge is the 32-bit version. Any ideas?
It's because LR only has acces to a cached preview of the file. You will need to point LR to the actual location of the file to get the high quality preview. It has nothing to do with CS3, Bridge etc.