JSI Tip 1307. Cursor blink rate.

In rare instances, the blinking cursor has been known to cause seizures for sensitive clients.

You can effectively stop the cursor from blinking by using Regedt32 to navigate to:

HKEY_CURRENT_USER\Control Panel\Desktop

Double click the CursorBlinkRate in the right hand pane and set this type REG_SZ value to 999999 milliseconds.

At the next logon, the cursor will stop blinking.

NOTE: A visitor has reported that -1 also works.