User Activity

My EOS 50D stops taking pictures after 4-5 shots.  It seems like the lens stops communicating with the camera.  I can remove the lens, reinstall it, and the same problem persists.  I have cleaned the contacts, no change.  I am using the Canon ES 5, 5...
both the driver disk and the download are locking up at the "Where to you live?"  Window.   Anyone have a suggestion.  Canon Customer Support has all of a sudden gotten IMPOSSIBLE to get hold of.  Never had a problem before, they have been very helpf...