LinuxQuestions.org - must be configured to display at least 256 colors

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must be configured to display at least 256 colors

When i try toinstall Oracle 11g on Fedora 17, it shows some err.
./runInstaller
Starting Oracle Universal Installer...

Checking Temp space: must be greater than 80 MB. Actual 16089 MB Passed
Checking swap space: must be greater than 150 MB. Actual 4574 MB Passed
Checking monitor: must be configured to display at least 256 colors
>>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set. Failed <<<<

Some requirement checks failed. You must fulfill these requirements before

continuing with the installation,

Continue? (y/n) [n] n

How to solve this problem.

Thanking you

presumaing you're already doing this inside X, then I'd guess that your oracle user has no permission to access your normal users X session? Here, running "xhost +localhost" will allow anyone on the local machine to open X applications on your display.