Hi,
Thank you for replying.
Check to see if 'Align to Grid' has a check mark.
If the issue persists, then I would ask you to check if the issue occurs in clean boot mode.
Refer to:
How to perform a clean boot in Windows
http://support.microsoft.com/kb/929135
Note: Refer the section "How to reset the computer to start normally after clean boot troubleshooting"
to reset the computer to start as normal after troubleshooting.
Thanks.