No the power supply has a known problem with a specific capacitor.
It has been discussed before, and IF you have a soldering iron it's easy to fix
Made a picture myself:
http://wl500g.info/showpost.php?p=175070&postcount=4
eventually I ended up soldering a elco with the same specs
link: http://www.conrad.nl/goto.php?artikel=421919
but you'd probably be able to buy one near to where you live more easily