Testing and Deployment

[CK_ONE]

Hello there.

Not sure where to begin here but I'm experiencing a problem with a website I've developed at the start of the year.

At the time of deployment the site was tested cross major browsers including a BB Curve and Iphone all with no problems.

Just recently my client purchased a BB Bold 9900 and now an unexplained line is appearing on a bg element.

I've tried everything to get rid of this line but nothing I do works.

I don't have a BB myself and I work on a Mac.

Any suggestions on how to debug this issue I'm having with the BB Bold browser?

Any advice is appreciated.

Thanks

[CK_ONE]

To confuse me even more this line now disappears when the site it zoomed but returns when it's not.

[CK_ONE]

Can't seem to find any answers to this issue anywhere. The device that's causing grief the BB Bold 9900 OS Version 7.0.0
Would be grateful if anyone that has this device could offer any suggestions.