My son has a raspberry pi, we had it working briefly (booting through to the GUI, with wheezy raspian), now we get several problems. First, the output is off-center so the first couple of letters of each line are not visible (we have a new 'Vizio' hdmi screen). Second, the boot sequence appears to hang up at the point where it says 'raspberry pi tty1'.
There are some ominous error messages earlier in the boot sequence, like 'groups or memory controller not available, not starting cgroups - warning' and 'Volume was not properly mounted. Some data may be corrupt. Please run fsck'
All suggestions welcomed