Hello. I have an Asus A455L Notebook laptop. Lately, since two weeks ago I have noticed this problem. Sometimes during restart or whenever I'm using my laptop, the desktop screen would suddenly turn into blue with a cursor. Just blank, no words on the screen. I am not able to navigate to 'start' even when I press windows key. So the only choice I have is to press off button and restart.. but when the screen turned blue, my music was still playing, I just couldn't see anything on the screen. and if it crashes while I'm browsing the web, I notice the task bar also turns blue and when I minimize my browser, the screen is blue but I can still view my browser.. Specs: Memory: 4GB Local Disk (C: ) : 782 GB free of 910 GB OS: Windows 8 Processor: Intel CORE i5 NVDIA GEFORCE 820M with Intel HD Graphics Card. I'm not very familiar with drivers and computers but this is all I can list down so far.. I attach a list of programs I've installed lately below . Help please?