Ever since I began to use Xcode 2 in Tiger for C++ development, everytime I open it, I use it for approximately half an hour, and then it starts beeping every time I write a parenthesis "(" character in the source file in Xcode. It's like when you try to enter a character in an invalid place (for example, try to enter a ")" character but you have forgotten to enter "(" previewsly), only that it isn't the fault in my code, because the problem disappears when I restart Xcode... After I insert the character and starts beeping, it doesn't stop at all, no matter what I do. Note that the fault is not in my code. This has happened to me countless times. The only thing that I can do is restart Xcode. Anyone has this problem? How can I fix it?