i see that this issue appears to be unresolved. i am having the same problem with a Compaq Evo W6000, Dual XEON 2.4 ghz CPUs, 2gb ram, Quadro4 750 XGL 128mb video card, 2 36gb scsi drives, Windows XP Pro. Revit 6.1. after it's rendered 2%, soon thereafter a message complains regarding low virtual memory. um, no...we have 4gb pagefile available. then a microsoft error appears with the following information:
AppName: revit.exe
AppVer: 6.1.2004.404
ModVer: 3.1.265.0
Offset: 0000f9b9
ModName: ar3core.dll
we are using accurender, and will try with a different rendering option later today.
any ideas???