We see this issue as well with IE7 and IE8, but only randomly. FF never
pops the error. When we do see it in IE, a simple browser refresh or two
will eventual get past the error. This occurs for timeline v2.3.1 and "pre
2.4.0"
We consider this to be critical as our main users are only allowed to use
IE.
Two things seemed to help as we have not seen the problem in a while. 1) We
stopped using the local simile bundle in favor of the individual files
(bundle=false). 2) We noticed in the code that Timeline.DateTime.* is
deprecated in favor of SimileAjax.DateTime.*, so we use that instead.