this is the solution to problem with capacitive buttons... "I think?" =D
well I'm only a consumer like another consumer of sony's products, I never had problems with their products. since 3 weeks i bought my new xperia mini (st15a) well now i have stupid problems with capacitive buttons , I tried contact the support of Sony but they never helped me. on this web I found help but I still do not try. to this point Sony dont help their customers, I'm really sad and angry with that service.
well there is a link with the page where are the solution, is an script, I think sony can launch another actualization with this solution maybe can save more customers.