I created an app (with Phonegap) that works perfectly on a couple of Samsung devices (Galaxy S2's), but not on the 2 LG Optimus L5 that I have tested it with.
The LG's have lower resolution, maybe this could cause the problem.
When the popup should show on the LG phone, the popup itself is not shown, but the grey-ish background of the popup is shown. On the Samsungs, the popup is shown as expected, with close button.
Anyone experienced this?