Been searching all day and am starting to see double :| I have Vista Premium 64 bit machine and when I installed a game; played it for two days on and off and then this AM; But now when I try to start the game I get the same DEP error. So I went to system properties and in the DEP area of the performance options and I do not have the option of checking or un-checking, both options in the Data Execution Prevention tab are grayed out. Any idea of what I can do? --------------------------------------------------------------- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To subscribe, unsubscribe or modify your email settings: //www.freelists.org/webpage/pctechtalk OR To subscribe to the mailing list, send an email to pctechtalk-request@xxxxxxxxxxxxx with "subscribe" in the Subject. To unsubscribe send email to pctechtalk-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject. To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ To contact only the PCTT Mod Squad, write to: pctechtalk-moderators@xxxxxxxxxxxxx To join our separate PCTableTalk off-topic group, send a blank email to: pctabletalk+subscribe@xxxxxxxxxxxxxxxx ---------------------------------------------------------------