Otter browser

I have tried the latest version of Otter on a Pandaboard with a few hitherto difficult websites for RISC OS browsers with following results.
Nationwide Building Society worked until I wanted to logout when it just wouldn’t – the page stayed the same.
Co-operative energy (www.cooperativeenergy.coop) clicking on login produced a blank page.
Southern railway (www.southernrailway.com) was very very slow and after entering journey details and clicking on ‘tickets and train times’ got a blank page.
Do !UnixFC, !UnixFont and cache still need to be in RAM? With previous versions of Otter I had these in RAM, but following Chris Gransden’s post in Announcements I have !UnixFC and !UnixFont in !Boot.Resources. I seem to have forgotten about the cache directory, where does that go now?