Not at all. How else do you intend to pass along your virus genes?
(Note added in proof: pass them along to your descendants, I mean. Boy, the gaffes I catch as my pointer hovers over the "post" button...)
I see what you're attempting to say, though: that your acquisition of a gene from a virus counts as a sorta-kinda form of inheritance. That's as may be, but that interpretation is predicated upon a technical knowledge of genetics. From Darwin's perspective, or even from the perspective of the human genome, it's just another means of acquiring a new variation. Darwin (again, ignorant of genetics) asserted that a mechanism like that had to exist, so this really falls more into the category of "another successful prediction of Darwinism" rather than "refutation of the concept of common descent".
What really strikes me as odd is that evolution posters have been pointing to such mechanisms (including also transposons) for years on FR, whenever a creationist would claim that "there exists no way to add base pairs to a chromosome" or even "there's mathematically no way to add information to a genome".
For you now to be acknowleding it but saying it somehow refutes evolution is a sort of progress, I guess. At the very least, the next time a creationist makes such an argument, we can call you in to set them straight.