JohnDuncan:Just seen this, will check it out... Cheers JD, it's happened at least half a dozen times tonight FWIW. I'm running IE8 on Vista if that helps.it's only been happening for about the last week or so and have tried clearing cookies etc and makes no difference.
EDIT- Also i'm finding i'm only being logged out while still on this site, i.e if i'm on the forums then read the blogs or news section for example, then return to the forums thats when i'm finding i need to log back in.But if i navigate away from this site altogether (to my google home page for example) then come back it's fine and am still logged in,if that makes sense.