Actually, if you have an X850 or earlier card, my advisement would be the 4.12 Catalyst drivers UNLESS there is a specific patch to an application that adresses a problem that actually manifests itself under said 4.12 drivers. Never assume that because the release notes say that an issue was fixed in driver version BLAH that it was an issue that existed in ALL prior driver versions. 4.10 addressed issues for cards with or above 256mb of Ram (even though I personally never noticed an issue under pre-4.10 drivers) and 4.12 has been widely acclaimed for many older cards.
In my own personal testings on both a 9200 Pro and a 9600 XT, I've had nothing but problems with anything past 4.12. And that was before I discovered that

of enthusiats preffered the 4.12's.
If you want to try the 4.12's but can't find them, PM me.