Input text will not type - clearing the cache fixes it

Usually my input-text-box works great but sometimes my input-text-box will not allow people to type into it - and the only thing that will fix it is clearing the cache.

But users will not clear their cache, they will just leave my site.

How do I fix this? What is going on? :tired:

There is a lot more animation in the .swf than I usually put in it but it’s optimized. Perhaps the Flash player is choking on the animation?