If you can't find the answer for your problem here, try looking in <#639#> <#639#> or <#640#> <#640#>. If you have a problem with installing L^ATEX, look in the installation guide files which come with the distribution. If this doesn't help, contact your local L^ATEX<#641#><#641#> guru or local L^ATEX<#642#><#642#> mailing list. If you think you've discovered a bug then please report it! First, you should find out if the problem is with a third-party package or class. If the problem is caused by a package or class other than those listed in Section~#Sec:class+packages#643> then please report the problem to the author of the package or class, not to the L^ATEX3 project team. If the bug really is with core L^ATEX<#644#><#644#> then you should create a <#645#> short<#645#>, <#646#> self-contained<#646#> document which exhibits the problem. You should run a <#647#> recent<#647#> (less than a year old) version of L^ATEX<#648#><#648#> on the file and then run L^ATEX<#649#><#649#> on |latexbug.tex|. This will create an error report which you should send, together with the sample document and log file, to the L^ATEX<#650#><#650#> bugs address which can be found in the file |latexbug.tex| or |bugs.txt|.