Suddenly loading of objects and scenes has slowed to a crawl.  A scene, which used to load in less than a minute, is taking several minutes.  I use Carrara Pro 7.1.1

Last night I tried to load a complex scene, which used to load fine, and had to close down Carrara after more than ten minutes of hard drive thrashing.  There is very little CPU use (hovering around 1%) but constant disk reads.  Has anyone else experienced this?  Any ideas to correct?

Thanks for any assistance.

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.