well psu you may be the problem then because i am running a AGP graphics card.... its voltage settings are set to 1.5 V any suggestions on wether that is correct or not?
That is correct for AGP. 1.5v is the standard for the AGP system. There are other standards for older AGP cards but in your case 1.5 is correct.
The appeture is not the AGP voltage.
The appeture is a BIOS setting that reserves a block of physical memory to the video system for overflow. For a 32-64MB video card the Appeture should be set to 128 in the BIOS. For a 256mb video card 128 may work fine but if available, 256 may work better. 512mb video cards would want a 256mb appeture setting.
As for PSU, if you find some type of voltage monitoring software and the motherboard supports voltage reporting, most do, you can check in Windows the 12v - 5v and 3.3v readings.
If the 12v is less than 11.8 you may very well have a weak or failing PSU. The 5v wants to be above 4.75v and the 3.3v must be above 3.18v
If the readings are low but above and close to the values I posted, when using MSFS you are loading the system down further and it is still very possible the PSU if falling below spec during game use.
so when i look through the bios menu what heading would those settings be under?
That differes from BIOS to BIOS and there are some cheap systems that do not allow access to the setting.
If you post your motherboard model and name I will see if I can find the manual and look it up
Usually it is a video catagory found under the advanced chipset settings for the board.
I have an Nvidia K7 Mainboard