Error 530 ?

having major problems not being able to log into my webspace.I keep getting an error 530 can't log in error over and over.The server accepts my username but not my password,gives a Pass hidden error then disconnects.Mty os is Xp home and it seems to be masking my passport when it sends it.My pass is only 8 letters/symbols long but somehow it is being sent as 16 asteriks.I've used smartftp at work and it logs in and out with no problems so i was wondering if anyone else has come across this?

Thanx in advance

RaseR//