Hello again,
Thank you for your support, Umberto. I tried the file you supplied, but it didn't make any difference. I went to the FSX scenary settings deactivated the scenery and reactivated after restarting FSX, but it didn't help. I have done some experimenting just to try to rule out some factors:
The freezing happens both at day and night
It happens both with FSX native aircrafts and with addon aircrafts
It happens whenever I am within a radius of about 7nm.
It happens both with high and low AntiPopUp
It happens regardless of weather conditions
It happens at both high and low FPS
It happens with or without external FPS limiter
And it happens only at this airport. I use same settings and hardware when flying other sceneries but the freezing happens only at Bergen airport. My conclusion is that there must be some unique conditions in this scenery that triggers the freezing. I use a high-end computer with i7@4.2GHz, ATI Radeon 4780 and 8GB DDR3 RAM. I can fly at high FPS (45) without experiencing any lag or other graphics problems, except for the freezing.
My question is, which features in this scenery can trigger a freezing exactly every 4 seconds?
I hope you don't take me wrong, Umberto. This airport offers the best and most detailed graphics of all the addons I have installed. I like it a lot. I fly from/to Bergen Flesland in real life once a month and I have been doing so for 5 years, so I know how realistic this addon is. The fact that it works well for 99% of the users proves that this piece of software is very well done and I understand that it is not easy to design software that works perfectly on every computer. There must be millions of combinations of software and hardware out there.
It is just because I like this scenery so much that I want it to run well. I really wished it did.
I appreciate your support.
I have added one more video showing this freezing.