I have been using a BB Torch 9800 for about two years but, in the last six months, I have been having intermittent problems with its trackpad and I am unable to move between icons or select applications by either using the trackpad or by tapping icons or sliding my finger on the screen. At times it works fine, at times it works only part way and at other times it does not work at all. This happens even with a fully charged battery and with what I believe to be the latest software Ver. 6.0 Pack 3049 (V188.8.131.526). In fact the device is now practically useless. I have removed and replaced the battery several times but that did not have any effect.
Is this a known problem with the BB Torch ? Can it be repaired ? What should I expect to pay if I bring it to a repair shop ?