Repairing Archive

every now and again when I start GW it comes up that it is repairing my archive.this takes any where from 10-20 minutes. any one else seeing this and does any one know what causes/how to prevent the need for this?

thanks and happy New Years.

i used get it ocasiaonally and i reported it to the ncsoft support ppl. then had me run a command and it's seemd to have stopped. i forgot the command so i'd suggest reporting the problem to support

Part of your GW.dat file may have been corrupted. If it repairs it, then it's probably okay, but if it keeps doing it every so often, you may want to download the entire GW.dat file from scratch. You can do this by deleting GW.dat from your Guild Wars directory (typically C:\Program Files\Guild Wars\), then running Guild Wars with the -image switch. Go to your GW shortcut and right-click, then select Properties. In the textbox for Target, append a space then -image. So for example, if the shortcut used to be "C:\Program Files\Guild Wars\gw.exe", it should now read, "C:\Program Files\Guild Wars\gw.exe" -image. Let your computer run overnight, cause it usually takes awhile to download everything. When it finishes downloading, just go back to your shortcut and remove the -image switch.

exactly like PRNG says - in my experience, it takes it a little over 6 hours to download on DSL...