hi, I have been having this problem for quite some time now. when ever I shut down my computer and try to start it up again the screen turns black after the windows logo or at times even loads up to the log in screen and 1ce I enter the password it turns black and fails to start up, at times I even have blue screen while it starts up. I have to repeatedly restart the computer around 5 times or more to log in at times. I have searched multiple forums for a fix but every 1 of them failed. I am guessing it has something to do with the driver since i can enter safe mode without any problem. my system windows 7 ultimate 32 bit SP1 processor intel quad core Q6600 (2.4ghz) 4 gb ram 500gb hard disk (x2) ati radeon HD4850 -driver date 4/19/2011 -driver version 8.850.0.0 Tried updating the driver for my graphics card but was not able to start the com so i had to uninstall the card from safe mode and this was the most compatible driver. please advice as it is quite problematic to restart the computer multiple times before logging in. thank you.