Gentlemen, I'm traveling so I'm just seeing your problems, and I don't have access to Gene to inspect or test to see what a possible solution might be to your problems. Collectively, I didn't have the problems you've listed. So, if I don't directly address your stated problem(s), I direct you to
http://www.tonymacx86.com/el-capita...st-solutions-el-capitan-install-problems.html.
Additionally, if you didn't use my installation procedures, the go review them in the first post. If you did follow them, you missed a step; so I recommend you review my procedures to see what step(s) you missed doing.
legaleye3000, see the above link.
xoreminder,
1. Did you try to change to change your System Definition with Clover Configurator? If not, try it. You might also use Clover Configurator to set up your SysDef's info that iMessage needs There is an excellent guide on how to Get iMessage working >
How to Fix iMessage. (I just have my MacBook Pro with me so I don't want to risk opening Clover Configurator to tell you what to do.)
2. It sounds like your Nvidia drivers aren't being set to use. Check to see in the Nvidia System Preference pane that the "Use Nvidia drivers" is checked. If not, add ""nvda_drv=1"" to your Clover's boot arguments (use Clover Configurator). See the following Graphics forum section threads to help your graphics debugging:
http://www.tonymacx86.com/graphics/183617-read-me-first-graphics-setup-troubleshooting.html
http://www.tonymacx86.com/graphics/161256-solving-nvidia-driver-install-loading-problems.html
3. Although I just use GarageBand for my audio recording needs, Gene works great using the standard Green port (Rear Panel) output to my monitor speakers. So, I can only recommend you play with the Audio MIMI Setup app in /Applications/Utilities/, and, maybe, getting some help from the users in the Music and/or Audio forum sections.
narcys-ray, sounds like you have the same problem/solution described in 2. above.
Good luck, guys! I think you all need to start posting your problems and/or looking for solutions in the sticky threads and regular threads in El Capitan Desktop Support and other forum sections (Graphics, Music, General Help, etc.)