You can select skin file you want to use from QT4 preferences. Does it work any better if you enable skins interface from QT4 GUI? (I assume you enable it using some other way)
No, if i select a skin from the preference the player doesn't crash right away but the skin doesn't show up, and then the player crash on restart so I have to reset it.
I tried reinstalling, no cigar. I tried removing all the skin but one in the skin folder, still no cigar.
System spec(if it helps any):
Gigabyte GA-EP35-DS3P
Intel Core 2 Quad Q6600
OCZ Platinum XTC REV.2 PC2-6400 2GB
Corsair CMPSU-620HX 620W
Power color Radeon HD4850
Audiophile 2496
Edirol FA-101
Win XP home sp3, up to date.