front tires wearing on inside

[manifesto]

has anyone experienced their boxsters front tires wearing out after only 5-7,000 miles. The alignment has been doen and it drives fine but tires keep wearing out, only the fronts, could it be a bent frame , i did buy it used, only had 7,000 miles on it then, now i have 25,000 on it

thanks

manifesto, when was your last allignement? What about balancing? Any mods...wheeel spacer, lowered springs...etc?