Hey Good News !!! I tried setting the CPU back to 450mhz, but that didn't help at all. So, I was going to reformat as a last resort but then thought I'd try removing some programs to see if that would help. I removed my Wacom Tablet software and IRQ program and what do you know but I can now do more things in Carrara without it crashing...or at least it doesn't crash were it used to!! I keep experimenting with this for awhile and if it works great, otherwise I will reformat. Thanks again!