hello ahamay, I am not presently at my work desk, but this should work for you.... 1st - Locate the Pro Tools icon .. it resides in the Digidesign folder..make sure that you locate the current PTLE that you are using. After you locate the icon click on it only ONCE, then press Apple I. A window will appear that states the current condition of the PT software. Navigate to memory and on the bottom line you can write new memory allocation. I've allocated 120,000 on this line, and it runs smoothly. After you re-allocate, I can't remember if a re-boot is required, but it won't hurt. This has been a much debated subject in the past concerning how much memory is actually needed, so do a search to get a more comprehensive overview. kenny