Problems with Adobe softwares in Windows 7

hey guys.. i really need your expert advise... i have installed windows 7 to my computer. Also, i have installed programs that i need for my work, (adobe photoshop, premiere and after effects) whenever i open premiere and after effects an error shows which says " the currently installed sound card driver does not support Direct Sound Input. Recording audio is not possible."... what do i have to install or whatever updating should i do to make my software work???.. and when it comes to adobe photoshop, the window Flicks every once in a while and i cant work continually.. pls pls pls pls guys i need your help.. anyone.. ?:(:confused::frown:

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