assuming you did this in illustrator, when you export in the window with all the options there is a checkbox for "enable anti-aliasing" make sure it's checked. also make sure your color palette is set to rgb, cmyk can cause some problems.

as far as the logo... i don't get it. you took a stock flame icon and cut out the letter v... that really doesn't have anything to do with the name virulent. unless you really like fire, it also has nothing to do with you as a person. try to come up with something that exemplifies you or your name, or better...both.