As the title says, I got a bunch of plug failures during startup of X2. I began to notice that they were all ikmultimedia plugs. Amplitube3, Ampeg SVX, Amplitube metal, the T-racks singles. If I try to load these in X2, boom! immediate crash. These all run perfectly in X1, Sonar 8.5, and all DAWs from other vendors. Seems to be X2 and ikmultimedia don't like each other right now? Tim Win 7, 32 bit, older Core2 2.4GHz quad core processor, ATI Radeon HD 4880 Right after posting this, It occurred to me to run X2 as Administrator. That did the trick. It is always the simple stuff.

I had 3 crashes in X2 so far... two Sonar and one Windows.  I use TRacks in most of my mixes, so I'll try your tip.  One was messing with a Producer setting while playing, so that may have done that one.  Haven't tried my Amplitube and Ampeg plugs yet.