Sorry for the lack of specifics...
I am trying to map through KiXtart. However, I have found since my post that the problem only occurs when connecting through Metaframe Presentation server over the web. Not when I use Citrix on our LAN.. so I am guessing KiXtart isn't the problem...
I've included the code, though in case anyone can spot some obvious weakness..
We check for OS (we have the whole range of OSes, from 98 to XP), then try to map to the \\server\users\username folder, if that doesn't work, we try to map to \\server\username (because some users still have their homedirs shared directly). None of the TS users have their homedirs shared diretly, so when the mapping of \\server\users\username fails, they're stuck
Here's the code.

Code:

if @PRODUCTTYPE = "Windows 2000 Professional" or @PRODUCTTYPE = "Windows XP Professional" or @PRODUCTSUITE = 16 
	use U: "\\server\users$\" + @USERID /persistent
	if @ERROR <> 0
		use U: "\\server\" + @USERID + "$$" /persistent
		if @ERROR <> 0
			Messagebox("didn't find homedir for " + @USERID, "Logon error", 48)
		endif
	endif
else
;Win98-code here
endif


Thanks for helping!
Anders