[CentOS] SD Card Reader not being recognized

>I think it's up to *you* to make stuff happen then.
>
>When I insert a CDROM, nothing happens unless I make it happen. For example, 
>when I try to browse it, stuff happens.
>
How do I do that if no icon comes up, or there is no place to browse 
within the file system? If there is some location that I'm supposed to 
know of where the SD card should have shown up, then please let me know 
where that is.

Dave