Hello!Same problem occurs with my AS6.5 using FS9 on Windows XP, here's my timeline (story - in hope there will someone find a solution):- The last fully functionally flight plan processing was on Tue, 7th Feb 2012 on a flight from Mauritius FIMP to Frankfurt EDDF The analyzing of the navigation points took as usual for long haul about 1-2 Minutes. (about 60- waypoints)- On Wed, 8th Feb 2012 i started the program as usual and wanted to import a Flightplan from EDDM Munich to Hurghada HEGN (i created with FSNavigator and convertet to ***.pln). This was the first time the analyzing of the navigation points (exact 35 waypoints) took about 7 Minutes!! I didn't install anything to my harddrive but the new airac from navigraph (which doesn't affect any FS or ASV files i think - i update airacs every month)- I decided to cancel the flight and do a reinstall of Active Sky. But no change. Then i did a complete reinstall of active sky (first uninstall, then delete all registry entries with CCcleaner, deleted all folders which are not automatically uninstalled by the uninstall program. I did a windows search for program components with keywords "asv" "asv6" "active sky" and "as" and found about 3-4 files again (specially from the Updates "Build 552" and "Build 554".)) And run again the CCcleaner to get sure no "rests" are on my harddisk. At last i looked at FS9 modules folder and found the active radar files and deleted them, also deleted the main FS9 weather folder and copied the original from the CD2 (in the Data3.cab).Restart PC and installed Active Sky again, with the updates.- No change, took also about 7 Minutes to analyse the navpoints.- Next day the same procedure as above. Reinstall Active Sky in an other folder name and suddenly it worked as fine as before.- Sat, 11th Feb did 3 flights (EIDW-LOWI, LOWI, EIDW and EVRA-LOWI)- Sun, 12th Feb did FACT-EGLL- Mon, 13th Feb did EHAM-LPMA and LPMA-EHAMall flightplans were analysed normal time about 30 seconds for the short-hauls and about 1-2 minutes for the long hauls. wonderful.- Tue, 14th Feb the shock. Wanted to fly ELLX-GVBA-GVAC-ELLX. on the first flight the problem started again. Nearly exactly after one week - i checked and there was nothing installed to my PC, either Windows-Updates nor anything to FS9 or sg.I'm angry now and don't know why this suddenly is doing that again. I don't want to load a flightplan for 10 Minutes or more.... now i'm trying to reinstall it again with the same long procedure.For information, I've installed active Sky also on my Notebook tho check the weather without using FS-PC (use Fetch funktion) - also the weather Fetching takes at least 3 times longer than normal. As i've installed it to another folder after a complete cleaning of all files used by ASV6 it worked same days as on the FS PC and also on Tue, 14th Feb 2012 it started again to take very long for fetching stations.Please for Help.Greets Stefan