My core started out as a hybrid, but for installation purposes only. Since then, I have setup AutoStartMedia to 0, and it works just fine.
hmmm, I think I'm going to try that this weekend... after a backup of course.
Josh - My core/hybrid is just sitting in a corner also. I just figured the MD functions are sitting there wastefully using up resources. Although my core is fast enough maybe it could be faster with the extra resources available. Plus if a core only install runs well virtualized I'll gain hardware to add an MD to my garage without spending a dime. Just a thought, I could be wrong.