i have a windows vista, and i use mozilla firefox. i believe that my antivirus is norton. my computer will NOT LET ME DOWNLOAD any files!! i tried downloading a game that my 16 year old brother plays {IMVU} and a photoshop download for myself, they both run, but it seems like they never fully download because something pops up that says "Blahblah has stopped working." And it suggests to run a solution, or close the program when the program never opened in the first place. HELP?!?!?!?!