After reading more of Collins summary of Rohl's work I was able to locate online some info on execration texts. Rohl in his book
Pharoahs and Kings writes of 2 Egyptian execration texts that were found with prominent biblical names on them:
"The first is the appearance of the name Yakkub which is clearly the biblical name Jacob, father of Joseph and former head of the Hebrew tribe of Abraham. The second, amazingly enough, is the non-Egyptian names of Joseph himself...Scholars immediately recognized that the "Ishpi" featured in the Execration Texts was the name "Yaseph (Joseph/Yusef).
Archaeological Evidence for the Exodus:
http://www.evidenceforchristianity.o...k=view&id=3672
wiki explanation:
Execration texts, also referred to as Proscription Lists,[1] are ancient Egyptian hieratic texts, listing enemies of the Pharaoh, most often enemies of the Egyptian state or troublesome foreign neighbors.[2] The texts were most often written upon statuettes of bound foreigners, bowls, or blocks of clay or stone, which were subsequently destroyed. The ceremonial process of breaking the names and burying them was intended to be a sort of sympathetic magic that would affect the persons or entities named in the texts. The fragments were usually placed near tombs or ritual sites. This practice was most common during times of conflict with the Asiatic neighbours of Egypt.[3]
http://en.wikipedia.org/wiki/Execration_Texts