I just bought two Intel 7260AC cards and installed them in two completely different laptops. One is an Asus G74Sx, which is about two years old. The install went fine, and everything is working great. The other laptop is an older Acer. I was able to install the card, get connected to the router just fine, and the wireless seemed to be working well, but the laptop's video seemed to be running very slowly. This laptop is running Windows 7 with the Aero theme, and when you click to open or close a window, the window fades in and out. Normally this happens pretty quickly, but now the fade animation takes a second or two. Initially I thought that maybe it's video drivers needed to be updated too (it's an older Intel GMA integrated video card, I believe), so I did that, but that did not solve the problem. I also updated some other drivers and updated some firmware, but that didn't help either. Eventually I re-installed the old card (a Broadcom job, I think), and it seemed to be OK. I uninstalled those drivers, re-installed the card, and it was still acting up. So, anyone run in to a similar issue? I can't imagine why a wi-fi card would be affecting the operation of the on-board video, unless it's an IRQ or DMA problem or something, but I haven't had any trouble with that kind of thing since probably 1994. Any suggestions?
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