I notice that I always have two option,default and another one.
GSX only has one refuel truck. Not sure what do you mean with "option": there's no way to select the refuel truck in GSX. If you see the default refuel truck, it's just because it has independently decided to move close to your plane, not because GSX has called it.
sometimes I see the fuel truck and sometimes only the driver of the truck.
As I've already replied to you in another post yesterday, a problem with missing *parts* of vehicles, it’s a video driver or an FSX graphic setting problem (a tweak in the FSX.CFG which should’t be applied)
Try all the following:
- Update your video driver
- Reset your video driver settings to default
- Reset the FSX settings to default, by removing the following file:
%APPDATA%\Microsof\FSX\FSX.CFG
This will force FSX to rebuild a new config with all default settings.
There are no other possible reasons for this. When you restore the FSX.CFG to default, be sure you apply the HIGHMEMFIX tweak, and restart. That's the only tweak that must be used, all the others are optional.
I updated all drivers,then I set my antivirus so that it does not scan the folder
Antivirus doesn't have anything to do with this, it's an FSX settings problem and/or video driver problem. A problem with the antivirus will STOP GSX from running, entirely.