BTW, I tried Sree3d and it just made preview look like I was drunk.  Went right back to Open GL.

As stated, no recurrence of the mouse over crash since I started clearing the cache each time.

I think an option for "clear cache on close" would be helpful, given this problem.

Also, I have the latest Nvidia driver installed.

System:

Intel Quad Dual Core Processor 2.66 GHZ
4.00 GB of Ram, 1 TB Raid 5 array
Microsoft XP Home SP3
GeForce 8600GT

Poser 7 SP3

Lotus 123 ~ S-Render ~ OS/2 WARP ~ IBM 8088 / 4.77 Mhz ~ Hercules Ultima graphics, Hitachi 10 MB HDD, 64K RAM, 12 in diagonal CRT Monitor (16 colors / 60 Hz refresh rate), 240 Watt PS, Dual 1.44 MB Floppies, 2 button mouse input device.  Beige horizontal case.  I don't display my unit.