i have the same issue. i have 4GB of ram, 1GB graphics card, and 2.4GHz intel quad core cpu. i used windows 7 64-bit. this is more than enough to run cabal at maximum settings without any kind of lag, so hardware resources are not at fault here. this is not a net lag issue either. back when i used win xp 64-bit i had this issue too. extremely annoying, i hope there is a solution to this problem.
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