Skip this one among with 5/3, 6/3 and 7/3. All other patches like 8/3 and 9/3 don't require this one and should apply fine.
Roderick
Hi,
Windows drivers only offer post pixel shader blending support on generic (A)RGB-like formats and in case of dx10-class cards like the Geforce8 also on some float formats. Right now we enable blending even when it isn't needed. In case of R32F (if you would disable the software conversion code) this gives a 400% performance boost in http://www.angelcode.com/dev/shadow/.
A next patch will add D3DUSAGE_QUERY_PIXELFORMAT_BLENDING support.
Regards, Roderick Colenbrander