PC turns off and starts automatically on opening CCleaner

Hi All!

I had good experience of cleaning my system with CCleaner. But Now on installing CCleaner 5.1, whenever I click the icon, the CCleaner window opens but suddenly my pc turns off and starts again. This is hapenning again and again.

My System specs are:

Elonex 1.7 GHz

512MB of RAM

MS Windows XP 2002 SP 2

Any suggestions?

Please see here

http://forum.piriform.com/index.php?showtopic=43027&do=findComment&comment=260079