Recommend a graphics card?

[IceFire]

I want to back up what Pfeil said. The trouble with most basic consumer systems is that they are the absolute cheapest of what they can put together. It's designed to run "just so" and the upgradability is limited.

Find out exactly what you have under the hood. Power supply especially. The CPU is slow but alright and an appropriately matched GPU (and enough power) and you should have a decent IL-2 rig.