Hello.
Like many of you I have the memory issue with my 1gb ram box. It gets bad when browsing media of course, and I believe it's due to the fanart and thumbnails being cached into the ram and then never released.
I was able to change the skin to not display background fanart, and that has improved browsing memory considerably. However it will eventually lock up if I continue browsing through.
I don't have an issue with it not releasing the video cache after playback.
I disabled thumbnails and fanart by setting the maxres to 0 in advancedsettings, but it is still using up a lot of memory.
What do you do to minimize your ram usage on the s905 boxes?