The day before yesterday, I installed Mandrake 10.0 on my computer. But there were some errors of X s configuration. Unfortunatly, it was a big problem to linux beginners like me. I searched some documents describing how to fix the X, but it seemed to be useless to me. The main configure file is XF86Config-4 in folder /etc/X11 . I modified the file following the steps they gave. It didn t work. Finnally I decide to fix it myself. From the error reports of startx , saying that, at least one device segment defined in the configure file, I contrasted the two files, XF86Config and XF86Config-4 , finding that Configurations in the first file seemed available to my system. So I copied it covering XF86Config-4, then startx.The beautiful desktop appeared!! How exciting!! I configured other hardwares and installed some softwares yesterday. It was a challenge of using linux. This morning, I installed mplayer and realone player.But when I tried to open the media files, both of the two media player give no response to my operates. To realplayer, I runed realplay in the terminal and the familiar window came out soon asking me to initialize it.Then it became normal. But it was a boring thing to let the mplayer go.It noticed that there was an error initializing ao output. It was the drive problem of the sound card, I guessed. So I reinstalled the drive rpm for it. But error occured when I tried to make saying a so file needed. I don t know what package could provide the file. So I gived up of reinstalling the drive. Finnally, I modified the conf file in ~/.mplayer . Then after rebooting the system, it worked too! Oh~~ A terrible eperience of using Linux! But I won t return to windows, because I like the system and become familiar with it now.:)