le jeu minecraft ne se lance pas

Bonjour,
J'ai acheté la version minecraft, mais sur le pc équipé de windows vista 32 bits le jeu ne fonctionne pas.
Voici la réponse du serveur:[18:52:47] [Client thread/INFO]: Setting user: jagerun132465798 [18:52:47] [Client thread/INFO]: (Session ID is token:2de5f0d772704c5795c54c574381443b:a1d9fc4ac49241169e1109bdf1bc7d7b)
Exception in thread "Client thread" com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
at com.google.gson.Gson.fromJson(Gson.java:815)
at com.google.gson.Gson.fromJson(Gson.java:768)
at lu.b(SourceFile:151)
at lu.<init>(SourceFile:43)
at net.minecraft.server.MinecraftServer.<init>(SourceFile:155)
at bpp.<init>(SourceFile:41)
at avf.<init>(SourceFile:293)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
at com.google.gson.stream.JsonReader.beginArray(JsonReader.java:338)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:79)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
at com.google.gson.Gson.fromJson(Gson.java:803)
... 7 more
Merci pour votre aide
Cordialement
M Chalumeau