I've been tweaking models and textures for Morrowind for quite a while now and had no problems using the NVIDIA plugins for DDS textures in Photoshop.
I've always used 18.104.22.168 ARGB compression algorithm, to avoid any loss f quality in the image.
Recently I updated Photoshop and installed the new version of the NVIDIA plugin, and now the textures I export with 22.214.171.124 don't work in the game.
If I use GTX5 they work, but there's quality loss and I find it really annoying.
Anybody has an older version of the Photoshop plugin? Or had a similar problem?