Min-Width not working

I have a topButtonbar which i have put inside a container whose width is 100% so as if in near future i need more buttons more can be added....

My button are inside a container namely TopButtonbar which i have kept at min-width:243px;开发者_运维技巧 and floated it on left. The buttons with in it are all floated right so as to make button position just apposite to that of a english version button bar which is floated right and button inside floated left....

My arabic template is adhering the setting of min-Width and float setting when i am runining it on crome and IE while keeping compatibility mode off.... When i am keeping IE Compatibility mode on, the button inside the TopButtonBar are stretching the Topbuttonbar which has min-width of 240px from let to right all along.... this is really apposite what i want....

i have tried the auto property for width but the results are same....

can you tell me how to fix this problem in IE Compatibility Mode.....

It's IE, supporting CSS hasn't ever really been its strong point. Anyway, how about this? http://blog.throbs.net/2006/11/17/IE7+And+MinWidth+.aspx