about channel problem

[xiaoxin]

my site has several channel.

domain name is : example.com

several channel as follows:

example.com
example.com/a
example.com/b
example.com/c

my site is composed of a,b,c

the click for example.com is about 130

the click for example.com/a is about 20
the click for example.com/b is about 10
the click for example.com/c is about 15

the sum of channel a, b ,c is only 45, the the click of example.com is 130.

where does the other click come from?

btw: i have a high CTR.

[mrSEman]

You probably forgot to select a channel when you generated the code for your ads. Try searching your pages for: google_ad_channel =""; to find the ads that may be the culprit, then regenerate the adcode making sure you select a channel.