Vista Media Centre has stopped starting.

Media Player is still working, so I am not sure what is causing it

Info:
Description:
Stopped working

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: ehshell.exe
Problem Signature 02: 6.0.6000.16386
Problem Signature 03: 4549b55e
Problem Signature 04: Microsoft.MediaCenter.UI
Problem Signature 05: 6.0.6000.0
Problem Signature 06: 4938add9
Problem Signature 07: 28f8
Problem Signature 08: 53
Problem Signature 09: System.InvalidCastException
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: 2057

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Thx in advanced