Default SGH-T759 Root Problem

I have an Exhibit 4G that I rooted using the zergrush method. Can someone tell me where I can find the stock rom that I can use with odin to get back to total stock? The reason I'm asking is because my device is a bit screwed up now. For example, I am getting " has stopped unexpectedly" when accessing the market.

Or any other ideas? I have rebooted into recovery and did factory reset multiple times.

Thanks a ton!!!