disaster strikes

world open has gone horribly bad so far for me. i lost 5 of my past 7 games - the last time i lost 5 games it took 6 months and 5 tournaments....looking back at the games, i think i am getting blind when playing with the real chess board, on the computer screen i rarely miss a move - here i dropped an entire rook in a winning position, and lost numerous pawns in other games. not sure how to increase the board vision, except practising always on a real board. lets see how i do in the remaining 2 games.