Since people asked, no, this machine has nothing running. In fact, I have taken the time to disable everything I can that uses cpu time. Heck, check the process list at startup and you'll see 15 items. I'm very anal about this.

I didn't get into the very nitty gritty before of how I know it's Poser 5, but it's quite obvious: I didn't install anything but PS7 and P5 before I noticed an increase in boot time. Removing PS7 had no effect, but removing P5 did. I, in fact, installed an anti-virus program before removing those, and it now boots just as fast as it used to, despite there being an anti-virus prorgram installed (for the curious, I have no viruses, and had no viruses, hence why I never had any anti-virus software installed. I'm anal, I know what gets installed on my machine, and I knew I had nothing to fear, but I figured I'd cover all bases anyway. I also have it disabled. Yes, I'm confident I won't get a virus. You decide if it's arrogant or stupid. ;)).

The only thing I can figure is maybe I tried to run P5 before installing SR4, but I'm fairly positive I installed and then immediately patched. I have no desire to use P5 in its initial form, but I've been fine with it since SR3.

I can't explain why what happened, well, happened. I'm just telling you what happened.

Oh, also, if something was scanning the runtime at boot, it'd choke on my P4 runtime long before P5's. I install P5 as just the program. I don't use any of its content except the dynamic items. P4, on the other hand, has a monstrous runtime. Gah, out of hand, really.