30D on/off switch question

[SnowA]

In the last couple of weeks I've noticed that my on/off switch no longer seems to work. Two things:

1. The switch no longer turns the camera off when moved to the "off" position. (Luckily the auto-off function still works so it puts itself to sleep/turns off after a minute or so).

2. Also, by experimenting, I've deduced that it's in the 'operate quick dial' mode regardless of the switch position, ie. I can use the quick dial to set Ev compensation even when the switch is only in "on" position.

Anyone had this before or have any suggestions? I'm not even sure if I need to worry about it since the auto-off still works and I can use the quick dial if I want.

Thanks in advance!

PS. The body is about 3 years old.