I currently have the trial version of Photomatix and I really don't like how it works. It's really sluggish in the rendering. Granted my computer is somewhat old but even my Photoshop CS works faster than Photomatix. What I was wondering is if it's just the trial version that's limiting the performance or is this normal for Photomatix? I'm looking to play HDR and tone mapping but I don't want to shell out the money for Photomatix if it's going to act so sluggish. I would rather upgrade my CS1 to CS3.