Use the procedure described in the following MSKB article:

Q313853 - "System Restore Tool Displays a Blank Calendar in Windows XP".

If you want to use the reg file method, after you copy and paste that code under Windows Registry Editor Version 5.00 in Notepad, save it as let's say florida.reg name. Double click florida.reg. See if System Restore is working. If it's working, and you can revert to a convenient point, make sure that you can use System Restore. If not, double click florida.reg again.

Good Luck,


Cetin


Trying to unweave, unwind, unravel
And piece together the past and the future,


T. S. Eliot