mousewheel scroll does not work

when I zoom out, it works, but when I try to zoom back to normal, it doesn’t, it stays zoomed out


extensions: adblock plus, google dictionary, keep my opt outs,lastpass,screen capture google,search by image google,
Windows 7 professional x64
UAC disabled
installed on drive C:
C:\Program Files (x86)\Comodo\Dragon

chrome is installed - version 16.0.912.77


The issue did not reproduce when tested.
Have you checked with a different browser?
The issue might also be generated by an incompatibility with the mouse driver.
Please update the thread with any information you find once you have tested.

Thank you for your support.

Does the problem persist when disable the extensions and plugins?