We have a number of people who have had the
incorrect data check
java.util.zip.ZipException: incorrect data check
java error message, and whilst some have fixed it by a clean boot replace of their current java environment by 1.5.0 update 5, some haven't - they still appear to be getting the 1.4.2 error message.
If you're in either camp, would you please post some software details (eg OS / SP), so that we can identify what the underlying problem is for those we can't fix?