从window 7换到XP后，在使用过程中鼠标突然停止响应，立马出现了ati2dvag.dll蓝屏,其实在window7 下也出现过，不过window7下没有直接蓝屏，只是暂停一小会之后报显示驱动停止响应已恢复。
在网上搜了下，找到解决方法（具体是否成功，还得验证），记录下：
去ATI官方网站 http://ati.amd.com/products/catalystcontrolcenter/index.html
原帖地址：http://blog.donews.com/icystar/archive/2009/10/19/1566774.aspx
以下是具体症状：
不定期蓝屏
突然鼠标不动，滴的一声，之后蓝屏
蓝屏提示：
A problem has been detected and windows has been shut down to prerent damage to
your computer
the problem seems to be caused by the following file:ati2dvag
if this is the filst time you've seen this stop error screen,restart your
computer.if this screen
sppears again,follow these steps:
the device driver got stvck in an infinite loop.this ususll indicates problem
with the derice
itself or with the device driver programming the hardware incorrectly.please
oheck wieh your
hardware device vendor for any driver updates.
technical information:
***stop:0x000000EA (0XFBB8C5A8,0XFF28D360,0XF8965CB4,0X00000001)
ati2dvag