Hmm I think you installed one level too "deep" in the directory.
I've got the exact same setup as you (MPlayer compiled on a fresh FC11 install).
The Blue skin is located in
/usr/local/share/mplayer/skins/default
i. e. INSIDE /default I have
Code:
[rylan@development skins]$ cd default/
[rylan@development default]$ ls -l
total 336
-rw-r--r-- 1 1054 106 2264 Mar 14 2003 about.png
-rw-r--r-- 1 1054 106 1627 Mar 14 2003 bareqb.png
-rw-r--r-- 1 1054 106 1753 Mar 14 2003 barexit.png
-rw-r--r-- 1 1054 106 1691 Mar 14 2003 barffwd.png
-rw-r--r-- 1 1054 106 1612 Mar 14 2003 barfwd.png
-rw-r--r-- 1 1054 106 1827 Mar 14 2003 barmute.png
-rw-r--r-- 1 1054 106 1815 Mar 14 2003 barplay.png
-rw-r--r-- 1 1054 106 1642 Mar 14 2003 barrev.png
-rw-r--r-- 1 1054 106 1699 Mar 14 2003 barrevv.png
-rw-r--r-- 1 1054 106 1569 Mar 14 2003 barstop.png
-rw-r--r-- 1 1054 106 997 Mar 14 2003 barzoom.png
-rw-r--r-- 1 1054 106 253 Mar 14 2003 eqb.png
-rw-r--r-- 1 1054 106 2212 May 31 2004 exit.png
-rw-r--r-- 1 1054 106 2023 Mar 14 2003 font.fnt
-rw-r--r-- 1 1054 106 1347 Mar 14 2003 font-pl.png
-rw-r--r-- 1 1054 106 3158 Mar 14 2003 forward.png
drwxr-sr-x 2 1054 106 4096 Mar 25 2005 icons
-rw-r--r-- 1 1054 106 1762 May 31 2004 load.png
-rw-r--r-- 1 1054 106 30945 Jun 2 2004 main.png
-rw-r--r-- 1 1054 106 26005 Mar 14 2003 main-silver.png
-rw-r--r-- 1 1054 106 14606 Mar 14 2003 menu.png
-rw-r--r-- 1 1054 106 15458 Mar 14 2003 menus.png
-rw-r--r-- 1 1054 106 1627 May 31 2004 minimize.png
-rw-r--r-- 1 1054 106 378 Mar 14 2003 mute.png
-rw-r--r-- 1 1054 106 2251 Mar 14 2003 next.png
-rw-r--r-- 1 1054 106 18899 Mar 14 2003 playbar.png
-rw-r--r-- 1 1054 106 292 Mar 14 2003 playlist.png
-rw-r--r-- 1 1054 106 3002 Mar 14 2003 play.png
-rw-r--r-- 1 1054 106 440 Mar 14 2003 pos.png
-rw-r--r-- 1 1054 106 2124 May 31 2004 prefs.png
-rw-r--r-- 1 1054 106 2153 Mar 14 2003 prev.png
-rw-r--r-- 1 1054 106 1283 Mar 14 2003 progres-long2c.png
-rw-r--r-- 1 1054 106 1289 Mar 14 2003 progres-long2d.png
-rw-r--r-- 1 1054 106 71 May 14 2004 README
-rw-r--r-- 1 1054 106 2779 Mar 14 2003 rev.png
-rw-r--r-- 1 1054 106 5958 May 31 2004 skin
-rw-r--r-- 1 1054 106 544 Mar 14 2003 skinb.png
-rw-r--r-- 1 1054 106 3747 May 31 2004 stop.png
-rw-r--r-- 1 1054 106 59254 Aug 15 2003 subblue.png
-rw-r--r-- 1 1054 106 237 Mar 14 2003 subload.png
-rw-r--r-- 1 1054 106 647 Mar 14 2003 symbols2.png
-rw-r--r-- 1 1054 106 437 Mar 14 2003 symbols.fnt
-rw-r--r-- 1 1054 106 153 Mar 14 2003 symbolsg.fnt
-rw-r--r-- 1 1054 106 4 Jun 2 2004 VERSION
-rw-r--r-- 1 1054 106 397 Mar 14 2003 zoom-3.png
[rylan@development default]$
I think you have
/usr/local/share/mplayer/skins/default/skin
I. e. you do not need a /skin subfolder INSIDE /default, you need the actual files in /default itself, not in /default/skin ... the /skin Mplayer refers to is a file "skin" inside the /default directory.
That is why gmplayer cannot find the skin (I think)