Had a small problem today with FSX not working well and also other programs running slow on the computer. Found out from the task manager that one program was using about 90% of the CPU. Turned out that it was avgnsx.exe which is a legitimate part of AVG. Easily disabled and apparently not an essential part of AVG (find it under Tools->Advanced->Link Scanner), so that the CPU freed up again.
Probably an update from yesterday that caused the problem, but all solved now. So if you have similar problems, then have a look to see if the avgnsx.exe program is causing the problems, it might be the same for many people,
smooth landings.

