The readme says the option to preload to video memory will be available to those with enough free video memory. How much is required? My 9800XT with 200 MB free memory apparently isn't enough? The option was greyed out. The good news is that by pre-loading to system RAM, I only had one stutter all night when approaching a Goon and NO CTDs!! Is this option really going to be available for us whom have all this unused video RAM?