+1 on that. PCI graphics cards are typically going to be old, and old hardware has problems in large memory (>= 4GB) environments. Sometimes the problem is the card firmware, sometimes the problem is the driver, sometimes the problem is both.
The most frequent solution is to get new hardware. As 64-bit operating environments become more common this issue will come up more and more frequently. If you want more than 2 monitors here's a suggestion: Depending on the form factor that OptiPlex 760 may have a PCI-E x1 expansion slot (a mini tower will, a desktop or SFF won't). If you know what to look for you can find PCI-E x1 video cards but you pay a bit of a premium for them. Here's some examples: http://www.newegg.com/Product/Product.aspx?Item=N82E16814161280 http://www.newegg.com/Product/Product.aspx?Item=N82E16814133278 http://www.newegg.com/Product/Product.aspx?Item=N82E16814195071 http://www.newegg.com/Product/Product.aspx?Item=N82E16814133211 http://www.newegg.com/Product/Product.aspx?Item=N82E16814106024 You may also want to consider a quad-head video card. The 2 biggest caveats: a) They're quite expensive ($400-$500 US) - 2 dual-head video cards are roughly 1/2 the cost and work just as well b) Sometimes they are full-height video cards that require a minitower form factor Quad-head examples: http://www.newegg.com/Product/Product.aspx?Item=N82E16814195086 http://www.newegg.com/Product/Product.aspx?Item=N82E16814133258 http://www.newegg.com/Product/Product.aspx?Item=N82E16814133255 Ben Scott wrote: > My guess is that the PCI card itself, or the device driver for it, > don't properly support 64-bit hardware addresses. -- Phil Brutsche [email protected] ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
