Hi Rounik, Thanks for responding. Here's my situations: 1) I'm missing the "Hybrid Mor" and "Hybrid Bas" files. What happens is whenever I load certain channel strip settings, particularly Synthesizers>Synth Pads> (several under this category) and Synthesizers> Motion Sequences (several under this category), and these are just some of the categories, I either get the message "Logic Pro: Plug-in 'Hybrid Mor' not available!", or the same message with "... Plug-in 'Hybrid Bas' not available!" and the channel strip shows the name of the patch with a diagonal line through it in the I/O slot. 2) Also, when I'm trying out different drum loops that are supposed to contain the Pop Kit, in the Loop Browser they play fine, but when I drag the loop into the Arrange Window I get a message "EXS24 INSTRUMENT 'Pop Kit.exs': Audio file 'TTHI11X04.aif not found!", then it loads the midi clip onto the Arrange Window correctly, but the strip loads "Crystal Pad", so I end up having to reset the strip and manually find a kit that at least comes close to the Pop Kit to play the loop (I usually substitute the Rock Kit since I can't find the Pop Kit). This leads me to the question: Is there a way to find out exactly what patch is playing in a particular midi loop in the Loop Browser (like a path or something)? Any help or insight greatly appreciated!