painting vinyl gutters

[scott.hall@comcast.net]

I'd have thought it was an easy question, but the box store droids either don't 
know or won't say, or offer conflicting information:

can I paint vinyl gutters?  is it a good idea to do so, or am I wasting my 
time?  and if I can't, is there another way to color them to the taupe (I'm 
married now...) color my wife wants rather than the white sold in home depot?

thanks in advance.

scott