Locked up my system too. I was running old SDRAM memory 1.5 GB and found out after replacing the whole setup with an Athlon XP2500 512 DDR that Poser5 was still putting a strain on my processor. The safety shut off on my proc. is set at 55 degrees and P5 makes it jump from 38 to 50 degrees just loading a DAZ3D figure fully clothed and textured. After the figures are loaded the temp drops back down but it jumps again when rendering. Burned out my old 1.4GB proc. ATI 8500DV, old K7 motherboard and HD. I rendered one comic around 300 panels at 980 X 570 72dpi and it started to die. Now the replacement is acting up and its definitely poser related.