[burlaff]

i've installed the campaign and it worked fine for a while, but then while playing it (after a few minutes, as I was taking off) I got an error message which read ‘The instruction at 0x0f8a0a57 referenced memory at 0x12c583a8. The memory could not be read. Click ok to terminate the program' I then started a new campaign but with a different squadron so I would take off from a different airfield to see if it would make any difference. I managed to take off and climb to around 14,000 feet with everything working as it should, but then the game crashed and the error message appeared again. Any ideas on why this would happen/how to fix it?
I'm running UP 2.01 by the way if it helps