i got a windows update on my windows vista, when i downloaded it and installed it my drives info points out that it's AMD Catalyst 10.11, i even confirmed with GPU-Z 0.4.8, the drivers are not on amd's website the ones on the site are 10.10.
The AMD Catalyst 10.11 drivers have fixed the pink defect that the earlier drivers and hot fix had not fixed.
I have AMD Radeon 5770 1GB by sapphire