Checksum error?

[Khrystl]

<p>Patcher failing to launch..</p><p>There was a problem confirming the checksum for the file C:Program FilesSony Online EntertainmentInstalled GamesEverQuest IIlp_tempEverQuest2.exe_delta_9337_335.patched.</p><p style="margin: 0px; text-indent: 0px;"> </p><p style="margin: 0px; text-indent: 0px;"> </p><p style="margin: 0px; text-indent: 0px;"> </p><p style="margin: 0px; text-indent: 0px;">???</p>

[Wingrider01]

<p>if vista or 7 are you right clicking and running as administrator</p>

[Khrystl]

<p>XP</p><p>do I delete the file that is having the error? It was running fine 8 hours ago.</p>