My machine has plenty of RAM (> 256 MB). Is it possible to increase the size of the RAM disk?
Sure. The size of the RAM disk is configured in file .\plugin\ramdisk_v5.2.7.0\ramdisk.inf. All common Hex values are already denoted there. In our tests, half of the RAM installed in the machine seems to be a proper size for the RAM disk. Supposingly, you have 512 MB of RAM installed in your machine.