requin: Hey thanks for clarifying that quick save thing. I didn't even know you could scroll across the saved-game screens, I'll try that next time.
Yes that's what mine was doing--crashing right before or after a cutscene, seemed like almost a 90% chance it would crash...so I got to saving right before and after cut-scenes too. However, I didnt' have a problem with crashing when I spoke with people too often, mostly just during close ups (i.e., of puzzles) and cut scenes.
I'm not sure if it's coincidence but when I tried changing my settings to win 98 compatible it seemed to help. I also read somewhere else that the game seems to crash more in certain chapters (chap 3 being one culprit). When I got to chap. 4 I didn't have as much trouble with crashing, now I'm on chap. 7 and still been doing a lot better than I was in chapters 1-3. Not sure why...but I still save ALL the time.
I mentioned talking to people as an option only because certain times it causes a cutscene (which could crash), not because of the conversations themselves. I don't think I've ever had a puzzle crash, though I could be misremembering, but cutscenes I'd agree seem like at least a 50/50 chance of crash on open and close.
EDIT: OK, I just finished the game (Awesome, btw) and right near the end I stumbled upon something which seemed to make the game rock solid! Leave some other stuff running when you play... I don't know why it worked for me (and a few other people I've seen on this forum) but once I started leaving a few programs running before starting Sanitarium (like FireFox, UHS Reader, Foxit PDF Reader, OpenOffice, iTunes, etc) I didn't encounter a single crash for the last 2-3 chapters! Hope this helps others running into this trouble.
My specs (in case it helps) are as follows:
CPU = AMD Athlon 64 X2 6000+ @ 3.0 GHz (Dual-Core, not overclocked or anything)
MB = Asus M2R32 MVP
RAM = 2x1GB PC2 6400 DDR2 (Crucial Tech., Dual Channel)
Video = ATI Radeon X1950 XTX (PCI Express with 512 MB GDDR3 on board)
OS = Windows XP Pro SP3 (fully patched except for .NET and other optional stuff)
Anything else which would be helpful, please just let me know.