I recently had a mobo go out and decided to upgrade a little withan ASUS A7N8X reusing my Athlon XP2000 cpu. I also upgraded my video card to a chaintech NVIDIA FX5700LE with 256 memory.In the process I had to reload wind XP Home.Everything works fine except FS9 which will run 4 minutes (very nicely) and suddenly crashes the system to a reboot.the "send info to MS" message includes this info:BCCode : 1000000a BCP1 : 00000004 BCP2 : 00000002 BCP3 : 00000001BCP4 : 804DC65B OSVer : 5_1_2600 SP : 2_0 Product : 768_1 C:DOCUME~1DAVESH~1LOCALS~1TempWER6b09.dir00Mini121304-01.dmpC:DOCUME~1DAVESH~1LOCALS~1TempWER6b09.dir00sysdata.xmlSecond try gave this result:C:WINDOWSMinidumpMini121404-01.dmpC:DOCUME~1DAVESH~1LOCALS~1TempWER1.tmp.dir00sysdata.xmlThe send error info brings up and MS page regarding hardware driver conflicts. No specifics, just contact every manufacturer on the planet.Any ideas as to what driver this may be?Dave

You'll have better luck cross posting in the hardware forum, but first question that comes to mind is did you replace your RAM after the old MB went out. Two things come to mind when FS2004 runs well and exits at random--bad RAM, or heat problems. A good way to test the RAM is to swap the chips in the slots if you have more than one.I discount a driver conflict being an issue--likely you'd see the problem sooner.One other issue, in addition to RAM, is whether your power supply is delivering proper voltages. A MB failure is caused by something--a suspect power supply can be a cause, and can also cause random failures in MSFS (or any other app). And a power supply issue can also roast a MB and make a cpu become marginal under stress.-John

Check for irq_not_less_or_equal at http://forums.viaarena.com/search.cfmDefinitly an AMD issue, like the tread_stuck_in_devicedriverJohan[A HREF=http://jdserver.no-ip.com]Personal Server[/A]or..http://62.238.33.10

Thanks guys, But I finally found the problem. The new ASUS mobo driver disk didn't have the right driver version for the on-board audio chip. I went to ASUS website and found a newer version, but at first was confused because it was a "RealTek" driver, and the audio chip was NVIDIA. I saved the realteck driver and finally got up enough nerve to try it. IT WORKED! Kinda confusing, but I guess it is an NVIDIA chip but needs a RealTeck driver.Anyway, had a fifteen minute session on FS9 and no problems evident.In retrospect, I did see the "irq_not_less_or_equal" at one point during the re-install process -but not again. This is interesting also: I now have FS9 on an 80 gig WD drive with three partitions installed in an external USB high speed case and it runs faster and with less stutters (have sliders at midpoint or greater). This was just an experiment but it works great.