I don't know if anyone else had this problem, but it seems like Vixen doesn't like dual monitor setups. I am running XP, Vixen 2.1.4.0, and a MSI videocard driving two monitors. If I start Vixen while in dual monitor mode everything if fine until I try and load a sequence. A message box pops up, saying "Verifying Adjustable Preview" and Vixen locks. If I set the system to only use one monitor, Vixen works fine.
I figured this out the hard way last year and, stupid me, forgot about it this year and spent about an hour downloading Vixen, reinstalling, etc. trying to re-invent the wheel. <fp.
I'm sharing it with you all JIC someone runs into the same problem. This will also serve as a reminder to myself because I know I'll forget again NEXT year.