im using the 4.8 version. I can't go into add/remove files and change it because there is only a remove option. after i install LW i goes thourgh the screens of what type of connection i have and search for files etc. then the pop up asking me if i wan't to up grade to LWPro comes up then i get the fatal internal error. I now have java run time environment 1.5.0 update 4 and i tired 1.4.my laptop is only one day old so i can't imagine something being out of date. this is weird hope this helps more