So, in my old apartment my router and HTPC were back-to-back on oposite sides of a crappy wall. Now in my current apartment the are on opposite ends of the apartment with 1 wall/closet in between and a distance of about 30/35 feet. My HTPC sits on the floor behind my tv stand between 2 floorstanding speakers and surrounded by dozens of wires and speaker cable. The HTPC has an old LinkSYS PCI wireless-G card and I use a ZyXEL X-550 router. In my old apartment I was able to stream video/etc just fine, now the video stutters every 5 minutes or so (which I believe is a noise/interference problem). I was wondering if something like this would help my situation: Cisco Small Business HGA7S High Gain Antenna for R-SMA Connectors http://www.newegg.com/Product/Product.aspx?Item=N82E16833124156 Looking at it, it seems to be made to replace the router antenna but I was wondering if it would work/improve the antenna on my wireless card? I've never messed with the antenna's before... Note: All other wireless devices (2 cell phones, 2 laptops, XBox 360, PS3, Wii) have no issues with the wireless signal. The XBox, PS3, and Wii all sit on a component shelf next to the tv between a speaker and the sub.