We have to release our GWT application using different Web addresses for every version, otherwise IE7 (possibly others) appear to cache that old application (resulting in grisly bugs). To explain version/Web addresses:

Has anybody else seen this? Anybody understand how to solve/circumvent in one other way? Mayhap there's some Apache setting? Or possibly some HTTP header? Thanks!

Set the Cache-Control response header to no-cache.

For better treatments for caching, take a look at Apache Entity Tags: http://en.wikipedia.org/wiki/HTTP_ETag