Hello Wellford,
If you are 100% certain you are entering the correct password, here are the simple steps.
1. You should delete any snipes that fire in the next 12 hours.
2. After 12 hours try again.
The reason is because from what you describe, it sounds like we tried to snipe for you, but there were 3 failures (since we place 2-3 snipes for each snipe). Since eBay experienced three (3) login failures from the BidSlammer's IP address, as a temporary security precaution they are throwing up a captcha (password protection) form. It goes away after 12 hours.
So if you still have a problem tomorrow, please let us know.
bidslammer