I have 1GB of RAM on my T4 and just purchased one of the Yamaha "packs". When I loaded it I was told that there was no room left in RAM. I deleted 20 or 30 of the instruments I use least but not 1 byte of memory was freed up. I realized that even though you delete the instrument all of its samples stay in RAM.

How do I delete an instrument together with ALL of its samples? Deleting each of the samples on its own would be extremely time consuming because each instrument can have hundreds of samples.

Any advice would be appreciated.