Filed under: LaptopsMicrosoft's Steve Ballmer is certainly no stranger to our CE-Oh no he didn't! series, but Mandriva's CEO François Bancilhon now looks to have turned the tables, with him targeting Ballmer in an open letter on his blog. Causing all his ire is a recent deal Mandriva made to install its Linux distribution onto 17,000 Classmate PCs sold to the Nigerian Government, which Nigeria says they will follow through on, only to replace the OS with Windows afterwards. Bancilhon, as you might have guessed, is laying the blame for the sudden change of heart squarely on Microsoft,