When using S&T Keys, press the F4 key and you will get a popup menu where you can see that one button can be pushed to see the gps pane (you will see the key related to this push button also)...
For the crashing problem, which version of S&T Keys are you using (the one specific for S&T 2008)?
I don't have any idea how good the 2008 version has been debugged, because i don't have it and don't use S&T 2008 at all. I don't think that it is related to your old laptop, but much more to a bug in S&T Keys 2008... The first beta version for S&T Keys 2009 had these kind of crashing problems, that are now a thing of the past i hope :-)
Marvin may be can help on the 2008 version.
I can only give some advices/support with the 2007 and 2009 version of S&T Keys which i am currently supporting...