discolored

Hello. First, please see attachment. I noticed this from a graphics card. Primarily as a matter of curiosity I'd like to know a) What the purpose, in general, a circuit part like that does (for instance, is it some type of capacitor or current regulator?), b) what could cause it to be damaged...

I believe I had a adware/spyware problem which I have cleaned up. But, something went in an adjusted my screen display so, that it is stretched, enlarged and discolored. I do not know how to re-adjust my display to fix my screen... Any suggestions?