problem with relative % seek in music

[GoogleCodeExporter]

What steps will reproduce the problem?
1. perform seek command using method 1 while playing music
2.
3.

What is the expected output? What do you see instead?
{
    "Type":"position",
    "Position":15,
    "SeekType":1
}
should seek forward 15%, but nothing happens
Oddly, if I seek relative -15% it will seek to absolute 85%

What version of the product are you using? On what operating system?
0.60, win7 32bit

Please provide any additional information below.
the problem seems to be specific to music and seektype 1

seektype 1 seems to work as expected with video.

Original issue reported on code.google.com by jitterja...@gmail.com on 5 Jan 2012 at 2:27

[GoogleCodeExporter]

I don't see any errors in the wifiremote code so the problem must be in 
MediaPortal itself.  I have not tested extensively, maybe it only happens on 
some computers.

Original comment by jitterja...@gmail.com on 21 Jan 2012 at 3:13