Nothing specific, no. I just noticed on my dual-boot machine that the same program running when booted in XP uses some amount of CPU but not 100%, but when I run it in Wine the same program pegs one of my cores at 100% and causes the computer fan to spin like a jet engine. So far, my experience is that if a program works at all in Wine, it runs great, sometimes even faster than native but seems to use a lot of CPU. Just wondering if there are ways to "calm down" the CPU usage without sacrificing all that great performance. I'd prefer not to "nice -n19 wine program.exe" This could all just be a "perception" difference and that windows is less aggressive about cooling my system than "apm" does or something. Well, asked and answered. Thanks.