I just bought an FX5700 to replace my 9800 Pro due to problems with my dual head setup. It was to be a holdover until the 6600GT AGP.
You all seem to be having more trouble with lockups than better dual head support is worth to me.
I am running a Pentium 4 on an i865 chipset, and Slackware 10.
Please convince me not to cancel the order.