"AAS" wrote in message
u...
Hi All,

While taxiing and undertaking a take-off roll FS2004 grinds to an almost
complete halt with frame rates of 1 or less making things completely
impossible to control. Literally as soon as the wheels leave the tarmac
all
returns to normal. The same happens as soon as the wheels hit the ground
on
landing. Makes no difference which plane or airport the problem is
consistent.

Any help would be greatful.
2.5machine with ram