On Sun, 17 May 2009 04:43:54 -0700 (PDT), Lino expert wrote:

Spray the track with furniture polish.

Well it's probably better to spray a little onto a cloth or bit of kitchen
roll and rub that along the surfaces of the the track where the hooks run.
Less chance of getting overspray on the wall paper etc and you don't need
a great deal of the stuff anyway.

Candle wax may work but that is normally used as lubricant on wooden
drawer runners rather than plastic curtain tracks. A little silicone based
furniture polish also dries and doesn't remain sticky to attract dust
either.

--
Cheers
Dave.