You could also use Ping() UDF and ping the computer name which would use whatever resolution service you are running.. but I think that I like the idea of doing it in loginscript and combining with postie.exe to send you an email in that case of the desired computer logging in.. or if one of multiple computers logs in.. something like.

code:
 
$TO = you@company.com
$FROM = you@company.com
$SUB = "Login Alert From @WKSTA By @USERID"
$IMP = "high"
$MSG = "User: @USERID has logged into workstation: @WKSTA."

if @WKSTA = "COMPUTER1" OR @WKSTA = "COMPUTER2"
	$ShellString='@ScriptDir\postie.exe -host:smtp.company.com -to:$TO -from:$FROM -replyto:$FROM -s:"$SUB" -msg:"$MSG" -$IMP'
	Shell $ShellString
endif
_________________________
Austin Henderson