2.1.3 mod_disk_cache partial responses

[dean]

Ive enabled mod_disk_cache in the 'stock-standard' httpd.conf, and 
cached pages come back wrong (missing images & css)
Ive found a bugzilla report that explained the exact same behaviour [Bug 
31486].
By looking at the headers, cached images return 206 Partial Response.

Hope thats enough info
Cheers