Ian,

Nothing ventured nothing gained.

Is this perhaps a defect in the Squeezebox then?

Have you tried with another brand component to see if it too has lock issues when using track forward or track back?

Cheers,

Surround Music Fan/Computer Geek/Curmudgeon in training.
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861v4, HD621, Panasonic BD-P55K, Toshiba HD-A35, Oppo HD990, Dish Network 622, Pioneer DV-668AV-S w/ DVD Upgrades mod, EW Fontaine II (x5), Velodyne DD-15 (x2), Seymour AV Ice blocks (x7)