Last week over "Dan's Data" (Letter's) posted a great write up on the problem with 4gbs on a 32-bit machine.http://www.dansdata.com/askdan00015.htmIt's a great read, and can say just about everyone will learn something.

good article, but as noted in PTaylor blog, FSX exe can be patched to make use of /4GT /3GB boot.ini switches.scott s..

>good article, but as noted in PTaylor blog, FSX exe can be>patched to make use of /4GT /3GB boot.ini switches.>>scott s.>.>Well that may be but it did not work for me.System is P4,3.4/2GDDR/INtel915GAVMoBo/NVidia 7600GS/512/XP pro SP2/FSX Sp1Made the changes to boot.ini. Made the edit to the FSX header. Installed the June 2007 DirectX update.Reboot and run FSX as usual (ASX, TrackIR,SpeedFan,Memstatus) shutting down all non essential programs and processes.Select default flight - first time I ran it, the FPS counter lines were not displaying and would not display. Trying to pan using the hat or keyboard would cause the system to hang for seconds before switching views. Was worse than a slide show. Exited FSX and shut down system. Restart and try again with same results except this time the red FPS info displayed - was between 0.5 and 2. Same problem trying to pan or change views. Exited FSX.Restored boot.ini and FSX.EXE to original state and tried again - FPS was about 15 ( normal for my default ) - no problems panning or switching views.Shutdown and repeated the 3GB cycle with the same dismal results.Back to original settings and all is well again.Have NO idea why it didn't work, just commenting that it did NOT work on MY system which is very clean as far as hokey programs and spyware, etc. and in fact made it worse. Good thing is that it did no harm to try.VicVisit the Virtual Pilot's Centerwww.flightadventures.comhttp://www.hifisim.com/Active Sky V6 Proud SupporterRadar Contact Supporter: http://www.jdtllc.com/

Same here Vic, it really played games with my video drivers,-PPrimary RigLiquid CooledIntel C2D E6600 @3.2 gigsAsus P5N32SLI-Plus2 gigs Corsair XMS PC6400 4 4 4 12 @810Dual OC'd XFX 8800GTX @ 2 gigs24 inch Widescreen LCD 16XAA/16XAFDual 19 inch LCD'sRaid-0+1PCPower and Cooling 1k Quad SLIhttp://home.comcast.net/~psolk/3monitorsa.htmlBackup RigAMD 4000 San Diego @ 2.72 Gigs Kingston Corsair XMS CL2XFX 7900 GTX Raid-0