What do you have your fullscreenborderless setting in the usercfg.opt file set for. If its set to 1 try setting it to 0, and if its set to 0 try setting it to 1.
What do you have your fullscreenborderless setting in the usercfg.opt file set for. If its set to 1 try setting it to 0, and if its set to 0 try setting it to 1.