Issues w/ KB975561 Anyone?...

Anyone seeing issues after installing KB975561 (yesterday)? ....
XP Prof, SP3, IE8, cable connection.
Installed KB975561 last evening. Hibernated overnight. First full reboot was this morning (about 11:45 est). BSOD w/ c000021a Fatal_System_ Error "Windows Logon Process system process," 0xc0000005.
Any reported issues w/ KB975561?
Full reboot in LKGC fine.
Device Mgr no problems. SysInfo no problems. Event Viewer shows nothing out of ordinary. Virus and spy scans clean. However in Event Viewer for 'System' shows normal (no problems) however, for "Applications" it gives me error : "The Event Log file is corrupt." First time i've ever seen that.
Uninstalled KB975561. Rebooted again in LKGC. Have not attempted reboot 'normal' yet....

No BSOD, but freeze/hang after/during logon. Either the logon dialog hung or the logon dialog disappeared and nothing further happened.

Booting in safe mode and uninstalling KB975561 helped.

Could not find anything suspicious in the event logs.