Are you using the compressed files as that could cause timing problems. You could try converting them to wav in the real track folders so the program is using direct from wav without having to decompress the file first. If they are late in timing you could try and trim that amount off the front of all the files in that real track folder. I don't think having 16gig of ram would make a difference to the timing. Um..that's all I can think off that might help you.