jQuery Grid Plugin - jqGrid

Hello,

I'm using jqGrid 3.8.1 in a project, with success in almost every steps. jQGrid is a very good piece of software.

However I discovered some days ago something strange using dynamic scroll with Firefox 3.6.12 (on Mac OS X, I didn't test on other OS yet).

When i set 'scroll: 1' in a jqGrid configuration, scrolling using mousewheel works very well, but clicking on the arrows of the scrollbar makes the grid scroll one row by second... Using scrollbar itself is also very slow.

With Chrome and Safari (again on Mac OS X), the scroll using arrows or scrollbar is a lot faster (but not as fast as the mousewheel, but this may be normal).

I tried to use 'scroll: true' with no change.

Thank you in advance for any help.