I'm using the latest version of portable firefox on a Memorex u3 256meg. Works fine on the xp computers at school, but when I try to run it on win2000 pro at home I'm not able to download any files. "Save picture as," "save link as" etc. all give me a split second of hourglass, then nothing. This feature works fine in regular firefox and IE on the same machine. is this just a 2000 bug, or am I doing something wrong?