It vibrates when i try to take a picture, it seems to be a contant vibrating noise. It has only started to do this yesterday after 2 years use. The virbating shops when i go to view the pics. what is the problem?

On Sony T100 and similar,
its the vibration canceling unit, i had the same problem.
if you have good hads you can fix it.( on your oun risk)
1) disasamble the camera, you will see black plastic box inside, this is he lens unit.
2) on the botom you see 2 scrwes, they are holding the CCD remove them and the ccd unit will come from the lens assembly
3) the next is the stabilizer unit it is the problematic one. it is located on the left side of the lens asebly and is held by 2 screws.
you can test it by puling out the cable connected to it (the conector is just under the lens) and verifign that the problem is solved. ( you can leave it this way it will shoot fine just without the anti shake)
4) to fix it take it out ,remove the plastic cover, you see the lens on a plastic mount it should be glued to the magnet under it. the problem is that the glue fals apart.
remove one of the pins on wich it slides, and take the lens and the magnet out.
5) reglue the magnet and reasemble the camera.
6) power up and test, for me that solved the problem

if you need more help you can mail me at adisarit(et)yahoo(dot)com this is spam mail so be prepared to wait a few days for reply.
i have a document with pictures explaining the process ...