Is your machine 32 bit? If it is then the wallet won't work. It requires 64 bit Java. Dunno why.
No... ive got 64 bit. Still no luck... which brings me to next question... Im trying to install lite client now but for sone reason the zipped folder is asking me for password?
password is nem.
also make sure you actually have the 64bit version of java installed. If you have a 64bit CPU but you're running 32bit Java you'll still encounter problems.