11.03.2014 11:47
на сайте жифорса:
This is a problem that involves BlueStacks App Player for Windows (beta-1) with the new NVIDIA GeForce 334.89 Driver update.
Description:
Large blank white square appears in the upper right hand corner of the BlueStacks App Player window when running any App.
This problem occurs with the new NVIDIA GeForce 334.89 Driver released February 19th, 2014.
Currently, the problem can be fixed by downgrading your Video drivers back to the previous version.
#GeForece 334.89 Driver (
http://www.bluestacks.com/)
#BlueStacks App Player for Windows (beta-1)
то бишь переустановка дров на более старую версию. кто нить тестил вариант предложенный sergio87?