OK....I finally found what was causing the problem with X2 locking up.
I had a Superior Drummer Latin Percussion synth in my project template.
When I would "Delete" the Superior Drummer synth with "Remove Associated Tracks" checked...it would remove the synth but NOT the tracks. If you clicked on the track X2 would lock up EVERY TIME.
So...I opened up my template...deleted the associated tracks from the latin percussion synth FIRST...then deleted the synth and it's working OK now.
Can't figure out why it was doing this. I've deleted synths all the time and never had a problem like this. I guess something just got crossed up with this one project template I made and created this crash every time.
Thanks for the help and suggestions everyone....you ARE appreciated...!