I can confirm this on the same laptop (brand new Dell Inspiron 9400). I have noticed the keyboard itself dying sometimes as well. This only occurs with 64-bit Edgy. 32-Bit Edgy works beautifully.
-- both button and tap-to-click cease working intermittently on touchpad https://launchpad.net/bugs/70687 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
