Hi Sandi, >maybve there is something inside Logic setup preference or other? >my LAWP CPU meter and power is more good in LAWP 4.04 than 4.1! >I also can use more tracks and plug in when use 4.04! Do you have any VST plugins loaded (read: activated via Plugin Enabler) in 4.1.1, especially VST instruments? Logic allways seems to preload a portion of the plugin whenever you boot it. You could perhaps try to deactivate some of them. I didn't try LM4 by myself, but a friend of mine told me that he wasn't able to load large samplesets into it, he even had to remove them from Logic's Vstplugin directory just to be able to open other plugins. Sascha