update installation failure 18

[Jug the Thug]

no matter how many times i try to update angry birds, angry birds seasons, and talking santa i always get unknown error update unsuccessful error 18. on my status bar on my droid x i watch the whole update sucessfully downloaded but right at the end an unknown error occurs. how can i fix this? it seems to only happen to larger files but i can tell. how can i work around this update error is it my phone? or.just a buggy update.

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