Please keep in mind that getting a good shave out of straight takes much more than a sharp razor, but good technique as well. No beginner will have good technique, it simply takes practice to develop. During that time, even with a perfectly sharpened razor, one should expect less than perfect shaves.

So my question is, who sharpened it? If it is a reputable sharpener, then it is your tehnique that is causing the problems. If it is someone who doesn't really know how to sharpen straights, then you have the problem of bad technique AND a razor that isn't shave ready.