The minor problem (Disclaimer):

Have you tried to maximize the console
code:
$RC = SetConsole('Maximize')
Minor problem second solution:
I don't understand the need for a discalimer.
If you are logged on, You must have a valid username with a corresponding correct password.

But if you want the user to confirm that he/she is logging on for only buissness usage you could use a messagebox with a
Yes/no button, and force a shutdown, if the user presses no:
code:
$Msg = "You are connecting to a monitored proprietary system of" + @CRLF +
"Banco do Brasil Miami Agency. Access by unauthorized" + @CRLF +
"individuals is prohibited. Only users authorized by" + @CRLF +
"Banco do Brasil Miami Agency may access this system." + @CRLF +
"Usage is restricted to business use." + @CRLF
@CRLF +
"Pres yes to continue if you agree" + @CRLF +
"Pres no to logoff if you disagree" + @CRLF
$RC = Messagebox($Msg,'Disclaimer',4 + 256 + 4096)
 
If $RC = 7 ; User pressed no, force a shutdown of the system
	$RC = ShutDown('','Shutting down',0,1,2)
	Quit
EndIf
Major problem:

Could you try changing this code:
code:
Case InGroup ("Mgt", "Mgr", 1) = 1 
	Use o: "\\$FileServer\mgt$"

	if @error
		? Error connecting O: drive
		sleep 30
	endif

	;****************************************************************************
	;**** Departments Data Share Folder (R:)
	if exist("r:")
		use r: /del
		if @error
			? Error disconnecting R: drive
			sleep 30
		endif
	endif

	use r: "\\$FileServer\Work" 
	if @error
		? Error connecting R: drive
		sleep 30
	endif

Case InGroup ("Mgt") = 1 
	Use o: "\\$FileServer\mgt$" 


	if @error
		? Error connecting O: drive
		sleep 30
	endif
To this code:
code:
Case InGroup ("Mgt")
	Use o: "\\$FileServer\mgt$"

	if @error
		? Error connecting O: drive
		sleep 30
	endif

	;****************************************************************************
	;**** Departments Data Share Folder (R:)
	If InGroup("Mgr")
		if exist("r:")
			use r: /del
			if @error
				? Error disconnecting R: drive
				sleep 30
			endif
		endif
	
		use r: "\\$FileServer\Work" 
		if @error
			? Error connecting R: drive
			sleep 30
		endif
	EndIf
-Erik