My PC is a fujitsuscaleo 600, last year I had a new hard drive and some extra RAM fitted and since then has been good - have used, and updated Firefox for over 6 years. in August I installed TrendMicro antivirus and for different reasons this has been uninstalled/re-installed twice. AFter letting it expire, I re-installed ParetoLogic PC health advisor (I think in August too)and allowed it to try updating some graphics drivers following a scan - this was unsuccessful so I marked them to ignore (something about my graphics card not supporting the drivers downoladed). I can see the mozilla files on WIndow Explorer but if I click 'remove' (control panel, add/remove programs) I get a very short 'hourglass' then nothing; if I click Firefox icon I get the same. Help!