My Carrara Pro 8 (64-bit) has been running very slow lately and I'm beginning to wonder if it's because of where I have it installed.  My 1 Tb hard drive is partitioned into a C and D drive.  Carrara (like all my programs) is installed on the C drive with all its native content, but all the Poser runtimes and the .car files I make I save on the D drive.  I used to always have Poser on a separate drive before I got Carrara and let Carrara use the default when it installed, that's why its the way it is.
Would it run a little faster (loading and saving especially) if everything was on the, say, the D drive?
Thanks!

I don't think that being on a separate partition would slow it down.  I think that if anything, it would make it a bit faster, since that partition is not being accessed as much as your primary one.  I usually try and keep my content all on a separate physical drive though.  Which is why I have like 10 physical drives in my rig lol..  Lot's of content.  Your issue might be a case of just a slow drive.  Sometimes a defrag can help speed things up, but not so much with Windows 7.  I don't know exactly what drive hardware you have so I can't give out more info.

Try deleting the temp files. I am refering to: "My documents"> DAZ>Carrara8>temp. C8 is much better than C6 or C7 about deleting them, but after any crash, one gets left behind. My C8 speed increased noticeably after deleting a few that I had accumulated.
Also, the first C8 start after a reboot is slooooow, but all subsequent starts are much faster. (Similar to Poser in this respect). I suspect it has to do with checking all the browser links, though this is not confirmed. I usually start C8, then walk away and make breakfast. :)

LOL yup..  With C7 or 6, you could have enough time to make a 7 course banquet...

I do delete the temp file regularly (especially after an especially nasty crash).
Oh well, I guess I'll just have to get a hobby to take up while my primary hobby boots up.  ;)

Try the following

1. Start -> Run -> %temp%

That will take you to the proper temp page.  clear it up.

1. run Task Manager (CTRL-ALT-DELETE)  under processes sort by CPU and look at what is chewing resources.

3. If you see any funny programs you dont recognize, download / install and scan with MalwareBytes & SuperAntiSpyware both have free editions you can get from www.download.com

make sure  windows is up to date, Microsoft just came out with emergency patch for a problem that effects all windows versions. http://support.microsoft.com/kb/2229593  there is a fix for it there.