/doommaster ON
A600s are rubbish! Get an A2000, they are much better built machines, military spec too, made out of proper metal. any Amiga which uses surface mount chips should be avoided. seriously, get an A2000. you will never look back
/doommaster OFF
seriously though i had this same problem once with my A600, and it never really got resolved, so it would be interesting to see how this pans out..