I really wish you hadn't closed my thread so quickly since I rarely load up my laptop. It wasn't as though I had said it fixed my problem, only that I would look when next on the laptop. Today I went and fired it up and I still cannot see any way to hide whole topics (eg pregnancy), only individual threads.
Laptop is Windows, Firefox.
www.mumsnet.com/Talk/site_stuff/4490201-Hiding-whole-topics