You can download the guidebook for your daughter's TI-30X IIS from the TI's website, free of charge a the website below:
http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=18
I dont have that calculator, but just try resetting the calculator??? (take out batteries)
Press any key (except for 2nd and On), and the message should disappear.
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How do I use the percent on the ti 30x iis
If you press the 2nd button and press 0 it will show "RESET: N Y" That is the menu.
Also for percent press the 2nd button and hit ( on your calculator.
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