The cat 9.4 drivers sometimes have issues installing the drivers properly. This is easily fixed.
Go to device manager>Display adapters, right-click properties and select "update driver software" under the drivers tab.
Next "browse my computer for driver software" > "let me pick from a list of device drivers" and in the window select "have disk"
Navigate to:
C:\ATI\Support\9-4_vista64_win7_64_dd_ccc_wdm_enu\Driver\Packages\Drivers\Display\LH6A_INF
and select CH_78303.inf which should then install the driver.
To verify both the correct CCC and driver version are installed, open Catalyst Control Center and check the info in Information Center / Graphics Software
the driver version should be 8.60 and CCC 9.4
Now it should be all installed. The BSOD's and errors could possibly have been caused my a mismatch between the Catalyst version and the display driver.