Pops, clicks, and/or memory problems.

Turn video acceleration down or off, and set Virtual Memory to no more than twice the amount of RAM in your system. Use the same setting for Minimum and Maximum.

Other Popular Articles:
• Here is a way to verify that the SOLO is receiving input correctly using a microphone and headphones.
• What are the cable requirements?
• How do I Rename a Track in AudioDesk?
• I added more RAM to my Mac, and Logic is having problems, like audio not playing in the Arrange window, etc.
• My Autotune keeps crashing during the MIX