I'm running MC 3.5.1 on an HP XW8600 with 4GB of RAM, Windows XP Pro 32-bit.

I do a lot of effects - BCC, Sapphire, Marquee, etc.  My PC will often "overload" and require a restart of MC to get going again.  Once my memory reader goes above 42%, I'm toast.

I realize that my RAM use is limited on XP to 3GB.

I've heard that this may be a MC version issue and that once I upgrade to 4.0, everything will be good.

I have also just upgraded to Z800, Vista 64-bit, 6GB RAM.  Maybe that will handle the problem as well.  We'll see.

Any ideas??

the new computer should do the trick, assuming you have an appopriate nvidia card...             sasha

NVidia Quadro FX4800 PCIe. How does that sound?