there you are wrong you need paragon rank 3 i believe and you need have done paragon legion loyal mission and make sure in tali loyalti mission she dont get exiled and they dont get to know about her father then you can get both quarians and geth but legion dies no matter what because if he needs upload the code he needs sacrifice
She wasn't wrong. The paragon dialogue choices (and the Renegade ones) do lead to saving both the Quarians and Geth, it's just there's a few little extras you have to have done to be able to get there.
The regular conversation options lead to one or the other.
[Edited by Medco88, 4/3/2012 5:09:42 PM]
I also saw a video of a talking dog on YouTube. Doesn't mean it's real.
You do save her. You mentioned above, you have to do the two other Rannoch quests first, and you have to have had a particular outcome to quests in ME2 to be able to do it.
Oh, and it took me about 7 seconds to find this. Link
I meant if she goes over the cliff. I've always saved her through the uniting the geth and quarian route.