by Ken Task.
If all browsers have this issue, then sounds like clearing server caches and getting them to re-generate is what one needs to do - not disable cache javascript (server or browser). Guess it depends upon still known-factors. One of the reasons for MUC was to reduce the number of hits and traffic on Moodle sites. This is Moodle's first year at MUC so am sure some documentation and some 'best practices' might be able to clarify in the near future (I hope).
'spirit of sharing', Ken