I had this problem a while back, but haven't had it recently. In fact until I read this post I'd forgotten about it.
Between then and now I did a sytem reset, because my computer was running slow anyway. I'm not sure if that cured it, but I haven't had problems since, but there've been a lot of updates since then. I don't think the amount of Ram has a lot to do with the problem, one of the frustrations with this machine is it has more memory, faster processor than my work desktop and that performs better and never had the out of memory error. I think it's more to do with the way Windows allocates memory and maybe some stray coding on a webpage.
