Hi,
For those of you who run a Liquid Mix, please be aware that I believe that the new version 2.0 contains a serious bug which actually inhibits Protools from opening a session. If you require further details feel free to read my following other post here->
Can't open session....
I'm sure they will work it out, but for now just stick with version 1.5.4 It may have its quirks, but at least you'll still be working.
JFK