I have a computer installed with windows 7 64 bit home edition and I have a strange problem. This happens in every program be it web browser, notepad etc. The problem is that when I write the " or ' or ` keys these do not print immeditaely when I press them but I have to press another key for them to be written. If say I press " then any other key both get printed on say notepad (but only after pressing the second key), but if I press " and space bar only the " gets printed. The problem is not from the keybaord as I have used this keyboard with another computer with windows 7 32 bit on it and it works normally. Also the problem is not from the computer hardware either because I have installed ubuntu linux on another hard disk partition of this computer and here the problem does not occur. It occurs only when running the windows 7 partition. Is there a filtering thing going on? If so how can I remove it?