SQL Compare Issue running on Vista

I've installed Compare and Data Compare on Vista and I can't even get it to load. I don't have any weird configuration on my machine. It is a very standard dev machine. Here are the details:

Description:
Stopped working

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: redgate.sqlcompare.ui.exe
Problem Signature 02: 5.3.0.44
Problem Signature 03: 4577fb05
Problem Signature 04: RedGate.SQLCompare.UI
Problem Signature 05: 5.3.0.44
Problem Signature 06: 4577fb05
Problem Signature 07: 31d
Problem Signature 08: 21
Problem Signature 09: System.TypeInitialization
OS Version: 6.0.6000.2.0.0.256.6
Locale ID: 1033

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Chris Sutton