Yes, I use both memory and disk cache. If there is nothing in memory cache, the display of cache for memory is blank. If I use KM for a while, there will be stuff show up in memory cache. If I view the cache for memory right after a KM start, it might be empty. The display being blank fooled me. I thought it was broken. It is not broken.
Disk cache device
Number of entries: 2863
Maximum storage size: 65536 KiB
Storage in use: 65536 KiB
Offline cache device
Number of entries: 0
Maximum storage size: 512000 KiB
Storage in use: 0 KiB
No information on memory cache.
K-Meleon 1.6.0 beta 2.4 Win 7 (32 bit)