> The Expert option 'Use a cache for updates' seems to be 
by 
> default checked. I wonder if that's a good choice. 

The cache is absolutely necessary for updates.

> It 
> caused me a half hour of head scratching this morning 
> until I finally found it and unchecked it. I simply could 
> not get a certain page to refresh even though it was 
> updated on the server. Even unchecked 'update hack', and 
> that didn't work! 

This is either related to the "update hack" checked, or the 
server which responded with a "up to date" status.

> There was also no indication in the log that these files 
> were coming from a cache. BTW, where IS the file cache???
In the hts-cache/ folder