once again...

My iPad crashed once again. I downloaded the new iPad software (iOS 4.3.5 I think) and then it got stuck on the start up apple screen. I had to restore which means all my organization work is again lost. Hopefully the back up will work at least to some extent. The same thing happened the last time I updated with the new software. Is it just my iPad? I'm thinking it might be and I am thinking I might need to return it to Woot.com and get my money back.