I received my Blackberry Tour 9630 about 5 days ago, and almost immediately noticed that the horizontal scrolling was either laggy or didn’t work.

After five days, I couldn’t scroll horizontally at all at normal sensitivity.  At 100 horizontal sensitivity, it will jump around a lot but will eventually scroll.

Here is a blurry video that shows the problem:

Additionally, I tested out my father-in-law’s Verizon Tour, and his horizontal scroll is how mine initially was.

I received my new Tour today in the mail – hopefully doesn’t happen again.

I really hope this is not a defect.

Update: Just received my new 9630 and the scroll wheel works great!