I have this problem too and it does seem some of you are missing the point or getting a little confused.
Most of you saying that you don't have a problem with this issue that is because you are using the Expanded View going by some images here as opposed to the view we are all having problems with which is the List View. It is a clear and obvious issue but the problem is that I don't know if it is Avast WebRep or Google Reader causing the issue, however, there is clearly a conflict between them both.
Running
Windows 7 Ultimate X64 Service Pack 1
Google Chrome Latest Version
Avast Internet Security
1 other Extension - Adblock
Image Attached on List View