Radeon 9700 Pro revision #

OK, I've heard alot of people talking about Radeon 9700 Pro revision numbers, like 1.0, 1.1, 1.2 & 1.3 .... all I want to know is what do they mean and what is the diffrence ??

P.S I have the revision 1.3.

noone knows ??

I belive a few of the earliest versions had issues with AGP 8x.