Solution for Jdeveloper (OAF) black screen, choppy and slow response in Win7

Solve the Problem of Jdeveloper (OAF) black screen, choppy, slow response in Win7 and open jdev in a text editor. conf file C: \ p5856648_R12_GENERIC \ jdevbin \ jdev \ bin \ jdev. conf find the following content # Disable Direct Draw, on some Windows 2000/XP base computers, # Direct Draw is cause excessive screen refreshes and slows down drawing. # AddVMOption-Dsun. java2d. noddraw = true remove the # sign before the last line! # Disable Direct Draw, on some Windows 2000/XP base computers, # Direct Draw is cause excessive screen refreshes and slows down drawing. AddVMOption-Dsun. java2d. noddraw = true save!