I scanned through some *.PMD and *.PZ3 files, and I did not find references to the corrupted pathways. I am sure Poser 8 is not saving them in scene files.

I turned on sharing for my extra drive where most of my runtimes are located, but it didn't do anything. I also checked, but Poser 8 does not care if letters are upper or lower case in directory names.

ratscloset is right. Poser 8 does not like anything but a "" following a number in the pathways to an image or texture. When you look at the Poser directory structure. Poser always installs something like this "...Poser 6..." or "...Poser 7...". For whatever reason, the Poser 8 search routine for textures not only expects a "" after a number, it puts it there in the texture list in the Texture Manager in the Advanced Materials Room.

I renamed my V42 folders using "xlii" instead of "42", deleted the folders from the library, added the renamed run times, and loaded a scene. I then added the textures by hand that had come from those runtimes, saved the scene, closed and reopened Poser 8, loaded the scene, and the textures opened. The M4 textures did not, as I had not renamed those directories.
 
On a whim I copied the M4 directories, renamed the copies to "Miv...", added them to the library, refreshed them, closed Poser 8, reopened the application and loaded a scene. This time deep search found the textures without me applying them manually.

I hope that the programmers and bug squashers can find this one before SR1. I am not going to go through and change all of my runtimes yet. If you must do so I suggest that you:

1. Copy the offending runtime to someplace where you have enough gigabytes.
2. Rename the copied runtime to something that doesn't have any numbers in it.
3. Add this to the library, and refresh it.
4. Load you figure, prop, hair, scene, whatever, and let deep search find it.
5. You can delete the added runtimes later, when Posaer 8 is fixed, and let deep search find the textures again.

LMK

Probably edited for spelling, grammer, punctuation, or typos.