Ive tried this on two separate computers so i really doubt this is from my machine. If you select the SHOUTcast DSP plugin and it shows you its config dialogue screen (this one
http://i.gyazo.com/a309e324828e8c16a4c94e5f6048fc95.png) everywhere in windows has this annoying effect:
http://i.gyazo.com/e4877b8c4f62513dd14d3615e2b8b320.png
http://i.gyazo.com/a5cc38de54e3af700d4048f8df4b9bdb.png
A block of grey or some shade behind everything appears and theres no way to make it go except logging out of your computer account