I just purchased and installed in FSX, the FlyTampa-Athens scenery. Something very strange is happening with this software. I will try to explain the best I can. When I take off from LGAV in the default MS "Boeing 737-800" and immediately after I leave the ground and even if I am quite far from LGAV, or if I have even landed in a near by other airport (like LGTT or LGAT or LGKN) and I want to end the flight by pressing Esc, the flight gets interrupted normally, after I click on End Flight, but strangely immediately afterwards, this same FSX "End Flight" dialog box, appears again for a second time, inside the main FSX interface, asking once more if I want to End Flight, or Continue Flying, or View Flight Analysis. After that, if I click on End Flight again, the program stops responding and I get a hard time to get out of FSX, even with Ctrl-Alt-Delete. I have tried it many times with the same result. It seems like if 2 same programs run one behind the other, because I have to try to get out of FSX twice. After all this trouble, I get the usual MS window, asking if I want to report this fatal error to MS. The error has to do with "hungapp" in the error report. This problem happens "ONLY WITH THE DEFAULT MS BOEING 737". Not with other planes, MS's or addons. I contacted FlyTampa's support but they didn't know about this issue and they suggested to post in this CTD Forum. My OS is XP32Pro SP3, Recognized RAM 3.25GB, Gr.Card ATI Radeon HD4870, CPU Intel Core2 Quad Q9650 3.00GHz. I hope somebody knows something about this problem.