I installed this in a brand new Vista 32-bit machine and the device manager reported that the device "could not be started". I tried the latest drivers from TrendNet's web site but that didn't resolve the problem. TrendNet's Knowledge Base also didn't have any information about Vista. Installing NIC's should be easy and this is probably the first that I've ever encountered problems with. I replaced this with the slightly more expensiveIntel PWLA8391GT PRO/1000 GT PCI Network AdapterNetwork Adapter and everything works perfectly. For an extra $10, the Intel board will save you a lot of time if you have Vista.