Hey, 2 solve dis problm go2 device manager-->display adaptrs-->video card driver-->properties-->rollback driver.
And also try to replace ur vsfilter.dll and ntdll.dll. and other files which have malfunctioned during hang these malfunctioned files can be found in error logs!
Hope any of these 2 work.u can reply to
gautam_raw@yahoo.com
-Gautam