It appears that when using Percentage width columns AND Filters on those columns that the percentage width is applied to the generated HTML for the select field. I would think that the width of the column should NEVER be applied to the style for the Filter select field (or any other contents of the column) and they should be allowed to fill the cell completely.
Follow up: There also appears to be a problem with PERCENT width columns set to NOWRAP. The class generated for the style uses a pixel width when it should not resulting in chopped text.
We'll investigate this and when possible, we'll try to improve this behavior in case percentage width type is selected.
There also seems to be something going on with the Firebird / Gecko support for percent columns as the grid does not honor it's RIGHT anchor and just places the right side of the grid somewhere in the middle... the <DIV does not have a width component, etc. it seems while in Chrome and IE it does.
Sorry, I meant 'FIREFOX'... I've got Firebird on the bird-brain...
I have not been able to reproduce any of the issues with percent width columns in Firefox (or IE, Chrome).
That way I can see exactly what settings you are using and further investigate this.
Thanks Bart.