MyNet n900 firmware downgrade process?

Hello all, there is talk of lots downgrading there firmware to help with router instability issues, is there an easy way to do it? Do you just have to find the lower version you require and flash through the router firmware page or is there anything else you have to do?

Please help as my router is doing my head in.

That is correct. I ran 1.03.11 without any problems and today I am testing 1.04.11. So far so good.

BTW, I disabled all the frills this time.