Will not, Launch 5 secs

[dunczr]

Hi guys bit of a problem..... I have recently just bought the Sturmovik: cliffs of Dover download, downloaded it on steam however i am too having problems as the game wont launch. Everytime i click play it comes up saying 'preparing to launch IL-Sturmovik then disappears and then the yellow symbol of an aircraft in a target appears for about 5secs and then disappears. Thats as far as iam getting.... any ideas why it wont load ? I have tried deactivating the resisdent shield on my AVG but it still wont load.

My laptop specs are;

AMD Turion tm 64 Mobile Technology MK-39
(2.0 GHz, 512KB L2 cache)
NVIDIA GeForce Go 6100
120GB HDD
1GB DDR2(support dual channel)

Can someone identify the problem here, is the performance of my computer too low? If so how can i upgrade it so the game will work ?

Help would be much appreciated !