Hi Burr, yeah, that's another factor - if all of your system memory gets filled up, then Windows will start "swapping" chunks of it to your hard disk to free up some more memory to do additional work.

Once that starts happening things suddenly slow down by a huge factor, since the hard disk is far slower than memory.

It definitely helps a lot to have quite a bit of RAM installed on your system to avoid this. For example if your system has 512MB or less of system RAM and you want to work with larger files, it would definitely work a lot more smoothly if you got your machine upgraded to have more RAM. That tends to be the #1 kind of system upgrade to make things go more smoothly and it usually is not very expensive also.

- Michael