Recently Restarted flying.

[porter guy]

so I recently restarted flying on FS again, but I have installed it on a new computer.

I'm not sure what to do, but when I was using FSX on my old computer with windows XP the callsigns for airlines (i.e. Air Canada, Westjet) would show up under airline.

My new computer has windows 7 and the call signs don't show up.

also, the failure rate of third party DLC is astonishing with this computer. Of the 10 aircraft I have tried to instal, only three have worked. Any suggestions?