Yeah, your not the only one getting the memory bug after installing SR1. I was working away on a piece yesterday, just V3, Daz Moffat hair, 'Shandi' texture only over 'Women of power' body morph. I did 4 renders at highest quality in Firefly just fine, then on 5th render I got the 'Texture is missing or cannot be found' and 'Out of memory' message. I could only render this piece again after turning Poser off, then on again. I also appear to have lost all the V3 'Head' morphs? Here we go again!