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that happens sometimes to opensim.exe since build 2099
Opensim.exe:
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The index was outside of the array range. :    
at System.Collections.Generic.Dictionary`2.Resize()
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
at OpenSim.Framework.Communications.Cache.AssetCache.ProcessTextureQueue()
at OpenSim.Framework.Communications.Cache.AssetCache.RunAssetManager()



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if i start asset grid server running on windows xp wit net framework
Opensim asset Server.exe:
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Untreated exception: System.NullReferenceException: The object reference wasnt specified on an object instance. 
at OpenSim.Grid.AssetServer.OpenAsset_Main.Startup()
at OpenSim.Grid.AssetServer.OpenAsset_Main.Main(String[] args)