Warning when installing relatively old game

This might be better suited for SuperUser.SE, but it also might be too game-specific.
I recently installed Tom Clancy's H.A.W.X., a game from 2009, on my new laptop.
My laptop carries an i7 2.5 GHz core with a GeForce 840M (around 1GHz, 2GB memory). In other words, it should be very well capable of running this game. During the install however, I got the following message:
Ofcourse, I blame Windows 8.1. Old software on newer operating systems has caused unusual errors in the past. But should I be worried? Should I fix the error causing this?
Do note the game has not failed in any obvious ways while playing yet (except for randomly launching my missiles, which is a known bug).
Best Answer
A lot of older video games used to query the driver and ask how much free video memory it had. Video memory sizes are large enough now that for some older games, it's causing the result to "wrap around" to a smaller value or occasionally even a negative value.
Unless there are runtime checks to get available video memory that are running into issues, this shouldn't be a problem.
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