Hey there Renzo, Me again... I read your original post a bit more closely and now see your hardware set-up. You might want to put your samples and loops on your first internal drive and let the 2nd drive function purely as your editing drive (as you¹re doing). This may be a negligible issue, but samples are simply read, while audio edits are written. Isolating the samples and loops to the first drive hampers the 2nd drive less, freeing it up for quicker I/O associated with your edits. This may help performance marginally. I¹m not sure if the FireWire 800 drive competes with your MOTU audio interface for bandwidth as it may be a different bus since the drive is FW800, but I would feel more comfortable knowing for sure. (Both busses may be governed by the same FW controller chip ­not sure on this, however). If it turns out that MOTU audio interface and FW800 drive activity, used together does stress out the FireWire controller chip, then use the external FW800 drive for backups and job storage (i.e. keep the FW drive off when Logic is talking back and forth with the MOTU 828). Not that any of the above is going to solve your reliability problem with Logic, but I thought I¹d give you my 2 cents on my take on your hardware configuration. BTW, I¹ve got my system drive partitioned here and Logic 7.1.1 is solid as a rock. I¹d rebuild the Autoload file first, before messing with the partitions. Lots of luck. Jazzman321 - When in doubt, crank up the jazz - ---