Let's face it, some problems with Poser 5 are bugs, some are hardware related, some are software-incompatibility related. I just reinstalled my entire WinXP Pro system today because LightWave 3D 7.5c Modeler was freezing my computer, which it hadn't done before. System specs: Intel 845G chipset, 533FSB, P4 2.54GHz, 1G DDR PC2100 RAM, GeForce4 TI 4600, 30 GB OS drive, 2 80GB drives, and so on - always the latest firmware, BIOS, drivers, patches, updates, etc. It's a nice beefy system. So it was not a hardware problem. LW was working nicely previously, so it was not a bug. It was definitely incompatibility or corruption with drivers, software, dlls, who knows. Hard to flush out a problem with lots of installs of various types and no dump (since the entire OS was freezing). Reinstallation seems to have eradicated the problem. Wish it didn't require such drastic measures, but there was no possible way to trace the problem - anyway, Windows gets cruddy very quickly with lots of apps installed. ************ Now, for the guy who says install only the OS and then Poser, well, you must have a rather simplistic computer setup. I have Poser PP4, Poser 5, LW 3D 7.5, Cinema 4D 8, UV Mapper Pro, Adobe Photoshop 7, Premiere 6.5, DVD Workshop 1.3, RecordNow DX (for writing data DVD archives), XP Office Pro, WinZip, StuffIt, Norton AV 2002, Real One, QuickTime 6 Pro, CyberLink PowerDVD, and many other minor software and drivers for all hardware and peripherals. And I use these all on a regular basis (3D CG, DVD video creation, animation/video editing, among other activities). No games, no Kazaas, no cutsie applications. Everything installed on my system has a direct purpose for being there. It'd be great if we could each afford three or four identical systems to isolate our main body of applications, but that would be ridiculous. You're electric bill would be catastrophic, the wires would take over your home office, you'd need a nice expensive KVM switch (or ten monitors, extra mice and keyboards), a network administrator, and more than one copy of any software that is needed on more than one machine (if you want to stay legal). ********** Poser has bugs, has inadequacies, nuances, and structural problems just like many other apps. Why the endemic problems weren't sorted out from 4 to 5 is beyond me (despite knowing their desire to shove a product out the door asap). As has been pointed out and hinted at, complex interactions of hardware, drivers, dlls, and software are impossible to predetermine. The best thing to do is make sure to have good, functional, non-flaky hardware with lastest firmware installed, avoid software that is known to interact poorly with your main applications, and don't install, uninstall, reinstall, install other stuff, uninstall, reinstall, etc. This is a sure way to cause havoc on your system. The registry will be a massive mess of non-existent dependencies. Also, get rid of all of that automatically run system tray crap. Real One, QuickTime, monitors, and cutsie quick run stuff like that just eats up valuable memory, bandwidth, and yields more potential for crashes than almost anything else. BYS